21181599

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1277}}^1$

素因数の和:1399

約数の個数: 24

約数和(自身を含む): 32563440

約数和(自身を除く): 11381841

約数列:

[1, 3, 9, 19, 57, 97, 171, 291, 873, 1277, 1843, 3831, 5529, 11493, 16587, 24263, 72789, 123869, 218367, 371607, 1114821, 2353511, 7060533, 21181599]

約数ペア:

[(1, 21181599), (3, 7060533), (9, 2353511), (19, 1114821), (57, 371607), (97, 218367), (171, 123869), (291, 72789), (873, 24263), (1277, 16587), (1843, 11493), (3831, 5529)]