21225656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156071}}^1$

素因数の和:156094

約数の個数: 16

約数和(自身を含む): 42139440

約数和(自身を除く): 20913784

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156071, 312142, 624284, 1248568, 2653207, 5306414, 10612828, 21225656]

約数ペア:

[(1, 21225656), (2, 10612828), (4, 5306414), (8, 2653207), (17, 1248568), (34, 624284), (68, 312142), (136, 156071)]