20493358

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1\times {\mathrm{509}}^1$

素因数の和:1043

約数の個数: 16

約数和(自身を含む): 31615920

約数和(自身を除く): 11122562

約数列:

[1, 2, 41, 82, 491, 509, 982, 1018, 20131, 20869, 40262, 41738, 249919, 499838, 10246679, 20493358]

約数ペア:

[(1, 20493358), (2, 10246679), (41, 499838), (82, 249919), (491, 41738), (509, 40262), (982, 20869), (1018, 20131)]