21286593

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{443}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 32554080

約数和(自身を除く): 11267487

約数列:

[1, 3, 9, 19, 57, 171, 281, 443, 843, 1329, 2529, 3987, 5339, 8417, 16017, 25251, 48051, 75753, 124483, 373449, 1120347, 2365177, 7095531, 21286593]

約数ペア:

[(1, 21286593), (3, 7095531), (9, 2365177), (19, 1120347), (57, 373449), (171, 124483), (281, 75753), (443, 48051), (843, 25251), (1329, 16017), (2529, 8417), (3987, 5339)]