20703790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{121787}}^1$

素因数の和:121811

約数の個数: 16

約数和(自身を含む): 39459312

約数和(自身を除く): 18755522

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 121787, 243574, 608935, 1217870, 2070379, 4140758, 10351895, 20703790]

約数ペア:

[(1, 20703790), (2, 10351895), (5, 4140758), (10, 2070379), (17, 1217870), (34, 608935), (85, 243574), (170, 121787)]