21171265

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1669}}^1$

素因数の和:1776

約数の個数: 16

約数和(自身を含む): 26452800

約数和(自身を除く): 5281535

約数列:

[1, 5, 43, 59, 215, 295, 1669, 2537, 8345, 12685, 71767, 98471, 358835, 492355, 4234253, 21171265]

約数ペア:

[(1, 21171265), (5, 4234253), (43, 492355), (59, 358835), (215, 98471), (295, 71767), (1669, 12685), (2537, 8345)]