20391195

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123583}}^1$

素因数の和:123602

約数の個数: 16

約数和(自身を含む): 35592192

約数和(自身を除く): 15200997

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 123583, 370749, 617915, 1359413, 1853745, 4078239, 6797065, 20391195]

約数ペア:

[(1, 20391195), (3, 6797065), (5, 4078239), (11, 1853745), (15, 1359413), (33, 617915), (55, 370749), (165, 123583)]