21286528

素因数分解:

$2^7\times {\mathrm{166301}}^1$

素因数の和:166315

約数の個数: 16

約数和(自身を含む): 42407010

約数和(自身を除く): 21120482

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 166301, 332602, 665204, 1330408, 2660816, 5321632, 10643264, 21286528]

約数ペア:

[(1, 21286528), (2, 10643264), (4, 5321632), (8, 2660816), (16, 1330408), (32, 665204), (64, 332602), (128, 166301)]