397339978

素因数分解:

$2^1\times 7^1\times {\mathrm{6689}}^1\times {\mathrm{4243}}^1$

素因数の和:10941

約数の個数: 16

約数和(自身を含む): 681416640

約数和(自身を除く): 284076662

約数列:

[1, 2, 7, 14, 4243, 6689, 8486, 13378, 29701, 46823, 59402, 93646, 28381427, 56762854, 198669989, 397339978]

約数ペア:

[(1, 397339978), (2, 198669989), (7, 56762854), (14, 28381427), (4243, 93646), (6689, 59402), (8486, 46823), (13378, 29701)]