16216405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{809}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 20606400

約数和(自身を除く): 4389995

約数列:

[1, 5, 19, 95, 211, 809, 1055, 4009, 4045, 15371, 20045, 76855, 170699, 853495, 3243281, 16216405]

約数ペア:

[(1, 16216405), (5, 3243281), (19, 853495), (95, 170699), (211, 76855), (809, 20045), (1055, 15371), (4009, 4045)]