20571837

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{607}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 32686080

約数和(自身を除く): 12114243

約数列:

[1, 3, 11, 13, 33, 39, 79, 143, 237, 429, 607, 869, 1027, 1821, 2607, 3081, 6677, 7891, 11297, 20031, 23673, 33891, 47953, 86801, 143859, 260403, 527483, 623389, 1582449, 1870167, 6857279, 20571837]

約数ペア:

[(1, 20571837), (3, 6857279), (11, 1870167), (13, 1582449), (33, 623389), (39, 527483), (79, 260403), (143, 143859), (237, 86801), (429, 47953), (607, 33891), (869, 23673), (1027, 20031), (1821, 11297), (2607, 7891), (3081, 6677)]