20613886

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1\times {\mathrm{521}}^1$

素因数の和:867

約数の個数: 16

約数和(自身を含む): 31520448

約数和(自身を除く): 10906562

約数列:

[1, 2, 73, 146, 271, 521, 542, 1042, 19783, 38033, 39566, 76066, 141191, 282382, 10306943, 20613886]

約数ペア:

[(1, 20613886), (2, 10306943), (73, 282382), (146, 141191), (271, 76066), (521, 39566), (542, 38033), (1042, 19783)]