21090281688

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{643}}^1\times {\mathrm{1033}}^1$

素因数の和:1708

約数の個数: 240

約数和(自身を含む): 68890270680

約数和(自身を除く): 47799988992

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 72, 81, 84, 98, 108, 126, 147, 162, 168, 189, 196, 216, 252, 294, 324, 378, 392, 441, 504, 567, 588, 643, 648, 756, 882, 1033, 1134, 1176, 1286, 1323, 1512, 1764, 1929, 2066, 2268, 2572, 2646, 3099, 3528, 3858, 3969, 4132, 4501, 4536, 5144, 5292, 5787, 6198, 7231, 7716, 7938, 8264, 9002, 9297, 10584, 11574, 12396, 13503, 14462, 15432, 15876, 17361, 18004, 18594, 21693, 23148, 24792, 27006, 27891, 28924, 31507, 31752, 34722, 36008, 37188, 40509, 43386, 46296, 50617, 52083, 54012, 55782, 57848, 63014, 65079, 69444, 74376, 81018, 83673, 86772, 94521, 101234, 104166, 108024, 111564, 121527, 126028, 130158, 138888, 151851, 162036, 167346, 173544, 189042, 195237, 202468, 208332, 223128, 243054, 252056, 260316, 283563, 303702, 324072, 334692, 364581, 378084, 390474, 404936, 416664, 455553, 486108, 520632, 567126, 585711, 607404, 664219, 669384, 729162, 756168, 780948, 850689, 911106, 972216, 1134252, 1171422, 1214808, 1328438, 1366659, 1458324, 1561896, 1701378, 1822212, 1992657, 2268504, 2342844, 2552067, 2656876, 2733318, 2916648, 3402756, 3644424, 3985314, 4099977, 4649533, 4685688, 5104134, 5313752, 5466636, 5977971, 6805512, 7970628, 8199954, 9299066, 10208268, 10933272, 11955942, 13948599, 15941256, 16399908, 17933913, 18598132, 20416536, 23911884, 27897198, 32546731, 32799816, 35867826, 37196264, 41845797, 47823768, 53801739, 55794396, 65093462, 71735652, 83691594, 97640193, 107603478, 111588792, 125537391, 130186924, 143471304, 167383188, 195280386, 215206956, 251074782, 260373848, 292920579, 334766376, 376612173, 390560772, 430413912, 502149564, 585841158, 753224346, 781121544, 878761737, 1004299128, 1171682316, 1506448692, 1757523474, 2343364632, 2636285211, 3012897384, 3515046948, 5272570422, 7030093896, 10545140844, 21090281688]

約数ペア:

[(1, 21090281688), (2, 10545140844), (3, 7030093896), (4, 5272570422), (6, 3515046948), (7, 3012897384), (8, 2636285211), (9, 2343364632), (12, 1757523474), (14, 1506448692), (18, 1171682316), (21, 1004299128), (24, 878761737), (27, 781121544), (28, 753224346), (36, 585841158), (42, 502149564), (49, 430413912), (54, 390560772), (56, 376612173), (63, 334766376), (72, 292920579), (81, 260373848), (84, 251074782), (98, 215206956), (108, 195280386), (126, 167383188), (147, 143471304), (162, 130186924), (168, 125537391), (189, 111588792), (196, 107603478), (216, 97640193), (252, 83691594), (294, 71735652), (324, 65093462), (378, 55794396), (392, 53801739), (441, 47823768), (504, 41845797), (567, 37196264), (588, 35867826), (643, 32799816), (648, 32546731), (756, 27897198), (882, 23911884), (1033, 20416536), (1134, 18598132), (1176, 17933913), (1286, 16399908), (1323, 15941256), (1512, 13948599), (1764, 11955942), (1929, 10933272), (2066, 10208268), (2268, 9299066), (2572, 8199954), (2646, 7970628), (3099, 6805512), (3528, 5977971), (3858, 5466636), (3969, 5313752), (4132, 5104134), (4501, 4685688), (4536, 4649533), (5144, 4099977), (5292, 3985314), (5787, 3644424), (6198, 3402756), (7231, 2916648), (7716, 2733318), (7938, 2656876), (8264, 2552067), (9002, 2342844), (9297, 2268504), (10584, 1992657), (11574, 1822212), (12396, 1701378), (13503, 1561896), (14462, 1458324), (15432, 1366659), (15876, 1328438), (17361, 1214808), (18004, 1171422), (18594, 1134252), (21693, 972216), (23148, 911106), (24792, 850689), (27006, 780948), (27891, 756168), (28924, 729162), (31507, 669384), (31752, 664219), (34722, 607404), (36008, 585711), (37188, 567126), (40509, 520632), (43386, 486108), (46296, 455553), (50617, 416664), (52083, 404936), (54012, 390474), (55782, 378084), (57848, 364581), (63014, 334692), (65079, 324072), (69444, 303702), (74376, 283563), (81018, 260316), (83673, 252056), (86772, 243054), (94521, 223128), (101234, 208332), (104166, 202468), (108024, 195237), (111564, 189042), (121527, 173544), (126028, 167346), (130158, 162036), (138888, 151851)]