20984901

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1889}}^1$

素因数の和:1945

約数の個数: 24

約数和(自身を含む): 33445440

約数和(自身を除く): 12460539

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 529, 1587, 1889, 3703, 5667, 11109, 13223, 39669, 43447, 130341, 304129, 912387, 999281, 2997843, 6994967, 20984901]

約数ペア:

[(1, 20984901), (3, 6994967), (7, 2997843), (21, 999281), (23, 912387), (69, 304129), (161, 130341), (483, 43447), (529, 39669), (1587, 13223), (1889, 11109), (3703, 5667)]