21829405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{2011}}^1$

素因数の和:2196

約数の個数: 16

約数和(自身を含む): 28393344

約数和(自身を除く): 6563939

約数列:

[1, 5, 13, 65, 167, 835, 2011, 2171, 10055, 10855, 26143, 130715, 335837, 1679185, 4365881, 21829405]

約数ペア:

[(1, 21829405), (5, 4365881), (13, 1679185), (65, 335837), (167, 130715), (835, 26143), (2011, 10855), (2171, 10055)]