21978433

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 24354000

約数和(自身を除く): 2375567

約数列:

[1, 17, 29, 109, 409, 493, 1853, 3161, 6953, 11861, 44581, 53737, 201637, 757877, 1292849, 21978433]

約数ペア:

[(1, 21978433), (17, 1292849), (29, 757877), (109, 201637), (409, 53737), (493, 44581), (1853, 11861), (3161, 6953)]