21132917

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1279}}^1$

素因数の和:1364

約数の個数: 16

約数和(自身を含む): 24084480

約数和(自身を除く): 2951563

約数列:

[1, 13, 31, 41, 403, 533, 1271, 1279, 16523, 16627, 39649, 52439, 515437, 681707, 1625609, 21132917]

約数ペア:

[(1, 21132917), (13, 1625609), (31, 681707), (41, 515437), (403, 52439), (533, 39649), (1271, 16627), (1279, 16523)]