21528808

素因数分解:

$2^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3527}}^1$

素因数の和:3649

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 25040792

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 109, 218, 436, 763, 872, 1526, 3052, 3527, 6104, 7054, 14108, 24689, 28216, 49378, 98756, 197512, 384443, 768886, 1537772, 2691101, 3075544, 5382202, 10764404, 21528808]

約数ペア:

[(1, 21528808), (2, 10764404), (4, 5382202), (7, 3075544), (8, 2691101), (14, 1537772), (28, 768886), (56, 384443), (109, 197512), (218, 98756), (436, 49378), (763, 28216), (872, 24689), (1526, 14108), (3052, 7054), (3527, 6104)]