20533989

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3407}}^1$

素因数の和:3465

約数の個数: 24

約数和(自身を含む): 32635008

約数和(自身を除く): 12101019

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 3407, 6027, 10221, 23849, 71547, 139687, 166943, 419061, 500829, 977809, 2933427, 6844663, 20533989]

約数ペア:

[(1, 20533989), (3, 6844663), (7, 2933427), (21, 977809), (41, 500829), (49, 419061), (123, 166943), (147, 139687), (287, 71547), (861, 23849), (2009, 10221), (3407, 6027)]