20400018

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{64151}}^1$

素因数の和:64209

約数の個数: 16

約数和(自身を含む): 41570496

約数和(自身を除く): 21170478

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 64151, 128302, 192453, 384906, 3400003, 6800006, 10200009, 20400018]

約数ペア:

[(1, 20400018), (2, 10200009), (3, 6800006), (6, 3400003), (53, 384906), (106, 192453), (159, 128302), (318, 64151)]