20537671

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2447}}^1$

素因数の和:2574

約数の個数: 16

約数和(自身を含む): 25850880

約数和(自身を除く): 5313209

約数列:

[1, 7, 11, 77, 109, 763, 1199, 2447, 8393, 17129, 26917, 188419, 266723, 1867061, 2933953, 20537671]

約数ペア:

[(1, 20537671), (7, 2933953), (11, 1867061), (77, 266723), (109, 188419), (763, 26917), (1199, 17129), (2447, 8393)]