18720116

素因数分解:

$2^2\times {\mathrm{1103}}^1\times {\mathrm{4243}}^1$

素因数の和:5350

約数の個数: 12

約数和(自身を含む): 32797632

約数和(自身を除く): 14077516

約数列:

[1, 2, 4, 1103, 2206, 4243, 4412, 8486, 16972, 4680029, 9360058, 18720116]

約数ペア:

[(1, 18720116), (2, 9360058), (4, 4680029), (1103, 16972), (2206, 8486), (4243, 4412)]