20890831

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 23728320

約数和(自身を除く): 2837489

約数列:

[1, 13, 23, 109, 299, 641, 1417, 2507, 8333, 14743, 32591, 69869, 191659, 908297, 1606987, 20890831]

約数ペア:

[(1, 20890831), (13, 1606987), (23, 908297), (109, 191659), (299, 69869), (641, 32591), (1417, 14743), (2507, 8333)]