391941

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 640224

約数和(自身を除く): 248283

約数列:

[1, 3, 9, 11, 33, 37, 99, 107, 111, 321, 333, 407, 963, 1177, 1221, 3531, 3663, 3959, 10593, 11877, 35631, 43549, 130647, 391941]

約数ペア:

[(1, 391941), (3, 130647), (9, 43549), (11, 35631), (33, 11877), (37, 10593), (99, 3959), (107, 3663), (111, 3531), (321, 1221), (333, 1177), (407, 963)]