640428981

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{101}}^2\times {\mathrm{1231}}^1$

素因数の和:1453

約数の個数: 24

約数和(自身を含む): 913917312

約数和(自身を除く): 273488331

約数列:

[1, 3, 17, 51, 101, 303, 1231, 1717, 3693, 5151, 10201, 20927, 30603, 62781, 124331, 173417, 372993, 520251, 2113627, 6340881, 12557431, 37672293, 213476327, 640428981]

約数ペア:

[(1, 640428981), (3, 213476327), (17, 37672293), (51, 12557431), (101, 6340881), (303, 2113627), (1231, 520251), (1717, 372993), (3693, 173417), (5151, 124331), (10201, 62781), (20927, 30603)]