20820177

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3407}}^1$

素因数の和:3517

約数の個数: 24

約数和(自身を含む): 34734336

約数和(自身を除く): 13914159

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2037, 3407, 6111, 10221, 23849, 30663, 71547, 214641, 330479, 991437, 2313353, 2974311, 6940059, 20820177]

約数ペア:

[(1, 20820177), (3, 6940059), (7, 2974311), (9, 2313353), (21, 991437), (63, 330479), (97, 214641), (291, 71547), (679, 30663), (873, 23849), (2037, 10221), (3407, 6111)]