20859391

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2971}}^1$

素因数の和:3054

約数の個数: 16

約数和(自身を含む): 25678080

約数和(自身を除く): 4818689

約数列:

[1, 7, 17, 59, 119, 413, 1003, 2971, 7021, 20797, 50507, 175289, 353549, 1227023, 2979913, 20859391]

約数ペア:

[(1, 20859391), (7, 2979913), (17, 1227023), (59, 353549), (119, 175289), (413, 50507), (1003, 20797), (2971, 7021)]