21975016

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{563}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 51166080

約数和(自身を除く): 29191064

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 41, 56, 68, 82, 119, 136, 164, 238, 287, 328, 476, 563, 574, 697, 952, 1126, 1148, 1394, 2252, 2296, 2788, 3941, 4504, 4879, 5576, 7882, 9571, 9758, 15764, 19142, 19516, 23083, 31528, 38284, 39032, 46166, 66997, 76568, 92332, 133994, 161581, 184664, 267988, 323162, 392411, 535976, 646324, 784822, 1292648, 1569644, 2746877, 3139288, 5493754, 10987508, 21975016]

約数ペア:

[(1, 21975016), (2, 10987508), (4, 5493754), (7, 3139288), (8, 2746877), (14, 1569644), (17, 1292648), (28, 784822), (34, 646324), (41, 535976), (56, 392411), (68, 323162), (82, 267988), (119, 184664), (136, 161581), (164, 133994), (238, 92332), (287, 76568), (328, 66997), (476, 46166), (563, 39032), (574, 38284), (697, 31528), (952, 23083), (1126, 19516), (1148, 19142), (1394, 15764), (2252, 9758), (2296, 9571), (2788, 7882), (3941, 5576), (4504, 4879)]