2649717

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 4420416

約数和(自身を除く): 1770699

約数列:

[1, 3, 7, 9, 21, 63, 137, 307, 411, 921, 959, 1233, 2149, 2763, 2877, 6447, 8631, 19341, 42059, 126177, 294413, 378531, 883239, 2649717]

約数ペア:

[(1, 2649717), (3, 883239), (7, 378531), (9, 294413), (21, 126177), (63, 42059), (137, 19341), (307, 8631), (411, 6447), (921, 2877), (959, 2763), (1233, 2149)]