19967902

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{2411}}^1$

素因数の和:2555

約数の個数: 16

約数和(自身を含む): 30999024

約数和(自身を除く): 11031122

約数列:

[1, 2, 41, 82, 101, 202, 2411, 4141, 4822, 8282, 98851, 197702, 243511, 487022, 9983951, 19967902]

約数ペア:

[(1, 19967902), (2, 9983951), (41, 487022), (82, 243511), (101, 197702), (202, 98851), (2411, 8282), (4141, 4822)]