20120221172

素因数分解:

$2^2\times {\mathrm{21713}}^1\times {\mathrm{231661}}^1$

素因数の和:253378

約数の個数: 12

約数和(自身を含む): 35212160676

約数和(自身を除く): 15091939504

約数列:

[1, 2, 4, 21713, 43426, 86852, 231661, 463322, 926644, 5030055293, 10060110586, 20120221172]

約数ペア:

[(1, 20120221172), (2, 10060110586), (4, 5030055293), (21713, 926644), (43426, 463322), (86852, 231661)]