128818593

素因数分解:

$3^4\times {\mathrm{313}}^1\times {\mathrm{5081}}^1$

素因数の和:5406

約数の個数: 20

約数和(自身を含む): 193085508

約数和(自身を除く): 64266915

約数列:

[1, 3, 9, 27, 81, 313, 939, 2817, 5081, 8451, 15243, 25353, 45729, 137187, 411561, 1590353, 4771059, 14313177, 42939531, 128818593]

約数ペア:

[(1, 128818593), (3, 42939531), (9, 14313177), (27, 4771059), (81, 1590353), (313, 411561), (939, 137187), (2817, 45729), (5081, 25353), (8451, 15243)]