21462460

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1553}}^1$

素因数の和:2253

約数の個数: 24

約数和(自身を含む): 45165456

約数和(自身を除く): 23702996

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1553, 2764, 3106, 3455, 6212, 6910, 7765, 13820, 15530, 31060, 1073123, 2146246, 4292492, 5365615, 10731230, 21462460]

約数ペア:

[(1, 21462460), (2, 10731230), (4, 5365615), (5, 4292492), (10, 2146246), (20, 1073123), (691, 31060), (1382, 15530), (1553, 13820), (2764, 7765), (3106, 6910), (3455, 6212)]