20170891

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{853}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 23242464

約数和(自身を除く): 3071573

約数列:

[1, 13, 17, 107, 221, 853, 1391, 1819, 11089, 14501, 23647, 91271, 188513, 1186523, 1551607, 20170891]

約数ペア:

[(1, 20170891), (13, 1551607), (17, 1186523), (107, 188513), (221, 91271), (853, 23647), (1391, 14501), (1819, 11089)]