21685552

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5233}}^1$

素因数の和:5285

約数の個数: 40

約数和(自身を含む): 49325216

約数和(自身を除く): 27639664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 5233, 10466, 20932, 36631, 41864, 73262, 83728, 146524, 193621, 293048, 387242, 586096, 774484, 1355347, 1548968, 2710694, 3097936, 5421388, 10842776, 21685552]

約数ペア:

[(1, 21685552), (2, 10842776), (4, 5421388), (7, 3097936), (8, 2710694), (14, 1548968), (16, 1355347), (28, 774484), (37, 586096), (56, 387242), (74, 293048), (112, 193621), (148, 146524), (259, 83728), (296, 73262), (518, 41864), (592, 36631), (1036, 20932), (2072, 10466), (4144, 5233)]