221481936

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:538

約数の個数: 180

約数和(自身を含む): 707990400

約数和(自身を除く): 486508464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 36, 38, 39, 48, 52, 57, 72, 76, 78, 104, 114, 117, 144, 152, 156, 169, 171, 208, 228, 234, 247, 304, 312, 338, 342, 456, 468, 479, 494, 507, 624, 676, 684, 741, 912, 936, 958, 988, 1014, 1352, 1368, 1437, 1482, 1521, 1872, 1916, 1976, 2028, 2223, 2704, 2736, 2874, 2964, 3042, 3211, 3832, 3952, 4056, 4311, 4446, 5748, 5928, 6084, 6227, 6422, 7664, 8112, 8622, 8892, 9101, 9633, 11496, 11856, 12168, 12454, 12844, 17244, 17784, 18202, 18681, 19266, 22992, 24336, 24908, 25688, 27303, 28899, 34488, 35568, 36404, 37362, 38532, 49816, 51376, 54606, 56043, 57798, 68976, 72808, 74724, 77064, 80951, 81909, 99632, 109212, 112086, 115596, 118313, 145616, 149448, 154128, 161902, 163818, 218424, 224172, 231192, 236626, 242853, 298896, 323804, 327636, 354939, 436848, 448344, 462384, 473252, 485706, 647608, 655272, 709878, 728559, 896688, 946504, 971412, 1064817, 1295216, 1310544, 1419756, 1457118, 1538069, 1893008, 1942824, 2129634, 2839512, 2914236, 3076138, 3885648, 4259268, 4614207, 5679024, 5828472, 6152276, 8518536, 9228414, 11656944, 12304552, 13842621, 17037072, 18456828, 24609104, 27685242, 36913656, 55370484, 73827312, 110740968, 221481936]

約数ペア:

[(1, 221481936), (2, 110740968), (3, 73827312), (4, 55370484), (6, 36913656), (8, 27685242), (9, 24609104), (12, 18456828), (13, 17037072), (16, 13842621), (18, 12304552), (19, 11656944), (24, 9228414), (26, 8518536), (36, 6152276), (38, 5828472), (39, 5679024), (48, 4614207), (52, 4259268), (57, 3885648), (72, 3076138), (76, 2914236), (78, 2839512), (104, 2129634), (114, 1942824), (117, 1893008), (144, 1538069), (152, 1457118), (156, 1419756), (169, 1310544), (171, 1295216), (208, 1064817), (228, 971412), (234, 946504), (247, 896688), (304, 728559), (312, 709878), (338, 655272), (342, 647608), (456, 485706), (468, 473252), (479, 462384), (494, 448344), (507, 436848), (624, 354939), (676, 327636), (684, 323804), (741, 298896), (912, 242853), (936, 236626), (958, 231192), (988, 224172), (1014, 218424), (1352, 163818), (1368, 161902), (1437, 154128), (1482, 149448), (1521, 145616), (1872, 118313), (1916, 115596), (1976, 112086), (2028, 109212), (2223, 99632), (2704, 81909), (2736, 80951), (2874, 77064), (2964, 74724), (3042, 72808), (3211, 68976), (3832, 57798), (3952, 56043), (4056, 54606), (4311, 51376), (4446, 49816), (5748, 38532), (5928, 37362), (6084, 36404), (6227, 35568), (6422, 34488), (7664, 28899), (8112, 27303), (8622, 25688), (8892, 24908), (9101, 24336), (9633, 22992), (11496, 19266), (11856, 18681), (12168, 18202), (12454, 17784), (12844, 17244)]