21419155

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 26430624

約数和(自身を除く): 5011469

約数列:

[1, 5, 53, 131, 265, 617, 655, 3085, 6943, 32701, 34715, 80827, 163505, 404135, 4283831, 21419155]

約数ペア:

[(1, 21419155), (5, 4283831), (53, 404135), (131, 163505), (265, 80827), (617, 34715), (655, 32701), (3085, 6943)]