21135656

素因数分解:

$2^3\times {\mathrm{1319}}^1\times {\mathrm{2003}}^1$

素因数の和:3328

約数の個数: 16

約数和(自身を含む): 39679200

約数和(自身を除く): 18543544

約数列:

[1, 2, 4, 8, 1319, 2003, 2638, 4006, 5276, 8012, 10552, 16024, 2641957, 5283914, 10567828, 21135656]

約数ペア:

[(1, 21135656), (2, 10567828), (4, 5283914), (8, 2641957), (1319, 16024), (2003, 10552), (2638, 8012), (4006, 5276)]