21515674

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{2129}}^1$

素因数の和:2325

約数の個数: 16

約数和(自身を含む): 33534720

約数和(自身を除く): 12019046

約数列:

[1, 2, 31, 62, 163, 326, 2129, 4258, 5053, 10106, 65999, 131998, 347027, 694054, 10757837, 21515674]

約数ペア:

[(1, 21515674), (2, 10757837), (31, 694054), (62, 347027), (163, 131998), (326, 65999), (2129, 10106), (4258, 5053)]