221384735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{309629}}^1$

素因数の和:309658

約数の個数: 16

約数和(自身を含む): 312107040

約数和(自身を除く): 90722305

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 309629, 1548145, 3405919, 4025177, 17029595, 20125885, 44276947, 221384735]

約数ペア:

[(1, 221384735), (5, 44276947), (11, 20125885), (13, 17029595), (55, 4025177), (65, 3405919), (143, 1548145), (715, 309629)]