21899214

素因数分解:

$2^1\times 3^3\times {\mathrm{405541}}^1$

素因数の和:405552

約数の個数: 16

約数和(自身を含む): 48665040

約数和(自身を除く): 26765826

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 405541, 811082, 1216623, 2433246, 3649869, 7299738, 10949607, 21899214]

約数ペア:

[(1, 21899214), (2, 10949607), (3, 7299738), (6, 3649869), (9, 2433246), (18, 1216623), (27, 811082), (54, 405541)]