20512382961

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{991}}^1\times {\mathrm{5107}}^1$

素因数の和:6301

約数の個数: 32

約数和(自身を含む): 31456780288

約数和(自身を除く): 10944397327

約数列:

[1, 3, 7, 21, 193, 579, 991, 1351, 2973, 4053, 5107, 6937, 15321, 20811, 35749, 107247, 191263, 573789, 985651, 1338841, 2956953, 4016523, 5061037, 6899557, 15183111, 20698671, 35427259, 106281777, 976780141, 2930340423, 6837460987, 20512382961]

約数ペア:

[(1, 20512382961), (3, 6837460987), (7, 2930340423), (21, 976780141), (193, 106281777), (579, 35427259), (991, 20698671), (1351, 15183111), (2973, 6899557), (4053, 5061037), (5107, 4016523), (6937, 2956953), (15321, 1338841), (20811, 985651), (35749, 573789), (107247, 191263)]