21243776

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 44982000

約数和(自身を除く): 23738224

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 59, 64, 97, 116, 118, 128, 194, 232, 236, 388, 464, 472, 776, 928, 944, 1552, 1711, 1856, 1888, 2813, 3104, 3422, 3712, 3776, 5626, 5723, 6208, 6844, 7552, 11252, 11446, 12416, 13688, 22504, 22892, 27376, 45008, 45784, 54752, 90016, 91568, 109504, 165967, 180032, 183136, 219008, 331934, 360064, 366272, 663868, 732544, 1327736, 2655472, 5310944, 10621888, 21243776]

約数ペア:

[(1, 21243776), (2, 10621888), (4, 5310944), (8, 2655472), (16, 1327736), (29, 732544), (32, 663868), (58, 366272), (59, 360064), (64, 331934), (97, 219008), (116, 183136), (118, 180032), (128, 165967), (194, 109504), (232, 91568), (236, 90016), (388, 54752), (464, 45784), (472, 45008), (776, 27376), (928, 22892), (944, 22504), (1552, 13688), (1711, 12416), (1856, 11446), (1888, 11252), (2813, 7552), (3104, 6844), (3422, 6208), (3712, 5723), (3776, 5626)]