21395576

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{10169}}^1$

素因数の和:10438

約数の個数: 16

約数和(自身を含む): 40273200

約数和(自身を除く): 18877624

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 10169, 20338, 40676, 81352, 2674447, 5348894, 10697788, 21395576]

約数ペア:

[(1, 21395576), (2, 10697788), (4, 5348894), (8, 2674447), (263, 81352), (526, 40676), (1052, 20338), (2104, 10169)]