21531957327

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{13073441}}^1$

素因数の和:13073511

約数の個数: 16

約数和(自身を含む): 32422136160

約数和(自身を除く): 10890178833

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 13073441, 39220323, 117660969, 352982907, 797479901, 2392439703, 7177319109, 21531957327]

約数ペア:

[(1, 21531957327), (3, 7177319109), (9, 2392439703), (27, 797479901), (61, 352982907), (183, 117660969), (549, 39220323), (1647, 13073441)]