21997703

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4561}}^1$

素因数の和:4634

約数の個数: 16

約数和(自身を含む): 27590976

約数和(自身を除く): 5593273

約数列:

[1, 7, 13, 53, 91, 371, 689, 4561, 4823, 31927, 59293, 241733, 415051, 1692131, 3142529, 21997703]

約数ペア:

[(1, 21997703), (7, 3142529), (13, 1692131), (53, 415051), (91, 241733), (371, 59293), (689, 31927), (4561, 4823)]