21369491

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5153}}^1$

素因数の和:5206

約数の個数: 16

約数和(自身を含む): 25976160

約数和(自身を除く): 4606669

約数列:

[1, 11, 13, 29, 143, 319, 377, 4147, 5153, 56683, 66989, 149437, 736879, 1643807, 1942681, 21369491]

約数ペア:

[(1, 21369491), (11, 1942681), (13, 1643807), (29, 736879), (143, 149437), (319, 66989), (377, 56683), (4147, 5153)]