20378043

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3023}}^1$

素因数の和:3143

約数の個数: 24

約数和(自身を含む): 33965568

約数和(自身を除く): 13587525

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 3023, 6741, 9069, 21161, 27207, 63483, 190449, 323461, 970383, 2264227, 2911149, 6792681, 20378043]

約数ペア:

[(1, 20378043), (3, 6792681), (7, 2911149), (9, 2264227), (21, 970383), (63, 323461), (107, 190449), (321, 63483), (749, 27207), (963, 21161), (2247, 9069), (3023, 6741)]