21797893

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1861}}^1$

素因数の和:1944

約数の個数: 16

約数和(自身を含む): 25338096

約数和(自身を除く): 3540203

約数列:

[1, 13, 17, 53, 221, 689, 901, 1861, 11713, 24193, 31637, 98633, 411281, 1282229, 1676761, 21797893]

約数ペア:

[(1, 21797893), (13, 1676761), (17, 1282229), (53, 411281), (221, 98633), (689, 31637), (901, 24193), (1861, 11713)]