220787541

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{23887}}^1$

素因数の和:23985

約数の個数: 24

約数和(自身を含む): 347809280

約数和(自身を除く): 127021739

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 3081, 9243, 23887, 71661, 214983, 310531, 931593, 1887073, 2794779, 5661219, 16983657, 24531949, 73595847, 220787541]

約数ペア:

[(1, 220787541), (3, 73595847), (9, 24531949), (13, 16983657), (39, 5661219), (79, 2794779), (117, 1887073), (237, 931593), (711, 310531), (1027, 214983), (3081, 71661), (9243, 23887)]