21497656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158071}}^1$

素因数の和:158094

約数の個数: 16

約数和(自身を含む): 42679440

約数和(自身を除く): 21181784

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158071, 316142, 632284, 1264568, 2687207, 5374414, 10748828, 21497656]

約数ペア:

[(1, 21497656), (2, 10748828), (4, 5374414), (8, 2687207), (17, 1264568), (34, 632284), (68, 316142), (136, 158071)]