21994128

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:437

約数の個数: 120

約数和(自身を含む): 68606720

約数和(自身を除く): 46612592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 36, 39, 48, 52, 62, 72, 78, 93, 104, 117, 124, 144, 156, 186, 208, 234, 248, 279, 312, 372, 379, 403, 468, 496, 558, 624, 744, 758, 806, 936, 1116, 1137, 1209, 1488, 1516, 1612, 1872, 2232, 2274, 2418, 3032, 3224, 3411, 3627, 4464, 4548, 4836, 4927, 6064, 6448, 6822, 7254, 9096, 9672, 9854, 11749, 13644, 14508, 14781, 18192, 19344, 19708, 23498, 27288, 29016, 29562, 35247, 39416, 44343, 46996, 54576, 58032, 59124, 70494, 78832, 88686, 93992, 105741, 118248, 140988, 152737, 177372, 187984, 211482, 236496, 281976, 305474, 354744, 422964, 458211, 563952, 610948, 709488, 845928, 916422, 1221896, 1374633, 1691856, 1832844, 2443792, 2749266, 3665688, 5498532, 7331376, 10997064, 21994128]

約数ペア:

[(1, 21994128), (2, 10997064), (3, 7331376), (4, 5498532), (6, 3665688), (8, 2749266), (9, 2443792), (12, 1832844), (13, 1691856), (16, 1374633), (18, 1221896), (24, 916422), (26, 845928), (31, 709488), (36, 610948), (39, 563952), (48, 458211), (52, 422964), (62, 354744), (72, 305474), (78, 281976), (93, 236496), (104, 211482), (117, 187984), (124, 177372), (144, 152737), (156, 140988), (186, 118248), (208, 105741), (234, 93992), (248, 88686), (279, 78832), (312, 70494), (372, 59124), (379, 58032), (403, 54576), (468, 46996), (496, 44343), (558, 39416), (624, 35247), (744, 29562), (758, 29016), (806, 27288), (936, 23498), (1116, 19708), (1137, 19344), (1209, 18192), (1488, 14781), (1516, 14508), (1612, 13644), (1872, 11749), (2232, 9854), (2274, 9672), (2418, 9096), (3032, 7254), (3224, 6822), (3411, 6448), (3627, 6064), (4464, 4927), (4548, 4836)]