20817656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{153071}}^1$

素因数の和:153094

約数の個数: 16

約数和(自身を含む): 41329440

約数和(自身を除く): 20511784

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 153071, 306142, 612284, 1224568, 2602207, 5204414, 10408828, 20817656]

約数ペア:

[(1, 20817656), (2, 10408828), (4, 5204414), (8, 2602207), (17, 1224568), (34, 612284), (68, 306142), (136, 153071)]