21283361

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:664

約数の個数: 16

約数和(自身を含む): 24243840

約数和(自身を除く): 2960479

約数列:

[1, 11, 29, 137, 319, 487, 1507, 3973, 5357, 14123, 43703, 66719, 155353, 733909, 1934851, 21283361]

約数ペア:

[(1, 21283361), (11, 1934851), (29, 733909), (137, 155353), (319, 66719), (487, 43703), (1507, 14123), (3973, 5357)]