21400408

素因数分解:

$2^3\times {\mathrm{601}}^1\times {\mathrm{4451}}^1$

素因数の和:5058

約数の個数: 16

約数和(自身を含む): 40201560

約数和(自身を除く): 18801152

約数列:

[1, 2, 4, 8, 601, 1202, 2404, 4451, 4808, 8902, 17804, 35608, 2675051, 5350102, 10700204, 21400408]

約数ペア:

[(1, 21400408), (2, 10700204), (4, 5350102), (8, 2675051), (601, 35608), (1202, 17804), (2404, 8902), (4451, 4808)]