20212405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{593}}^1$

素因数の和:1016

約数の個数: 16

約数和(自身を含む): 25789104

約数和(自身を除く): 5576699

約数列:

[1, 5, 17, 85, 401, 593, 2005, 2965, 6817, 10081, 34085, 50405, 237793, 1188965, 4042481, 20212405]

約数ペア:

[(1, 20212405), (5, 4042481), (17, 1188965), (85, 237793), (401, 50405), (593, 34085), (2005, 10081), (2965, 6817)]