128423463

素因数分解:

$3^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{3109}}^1$

素因数の和:3407

約数の個数: 24

約数和(自身を含む): 199960560

約数和(自身を除く): 71537097

約数列:

[1, 3, 7, 21, 49, 147, 281, 843, 1967, 3109, 5901, 9327, 13769, 21763, 41307, 65289, 152341, 457023, 873629, 2620887, 6115403, 18346209, 42807821, 128423463]

約数ペア:

[(1, 128423463), (3, 42807821), (7, 18346209), (21, 6115403), (49, 2620887), (147, 873629), (281, 457023), (843, 152341), (1967, 65289), (3109, 41307), (5901, 21763), (9327, 13769)]