21618951

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3889}}^1$

素因数の和:4018

約数の個数: 16

約数和(自身を含む): 30808800

約数和(自身を除く): 9189849

約数列:

[1, 3, 17, 51, 109, 327, 1853, 3889, 5559, 11667, 66113, 198339, 423901, 1271703, 7206317, 21618951]

約数ペア:

[(1, 21618951), (3, 7206317), (17, 1271703), (51, 423901), (109, 198339), (327, 66113), (1853, 11667), (3889, 5559)]