21019713

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{3769}}^1$

素因数の和:3809

約数の個数: 24

約数和(自身を含む): 33115680

約数和(自身を除く): 12095967

約数列:

[1, 3, 11, 13, 33, 39, 143, 169, 429, 507, 1859, 3769, 5577, 11307, 41459, 48997, 124377, 146991, 538967, 636961, 1616901, 1910883, 7006571, 21019713]

約数ペア:

[(1, 21019713), (3, 7006571), (11, 1910883), (13, 1616901), (33, 636961), (39, 538967), (143, 146991), (169, 124377), (429, 48997), (507, 41459), (1859, 11307), (3769, 5577)]