21509378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{941}}^1\times {\mathrm{1039}}^1$

素因数の和:1993

約数の個数: 16

約数和(自身を含む): 35268480

約数和(自身を除く): 13759102

約数列:

[1, 2, 11, 22, 941, 1039, 1882, 2078, 10351, 11429, 20702, 22858, 977699, 1955398, 10754689, 21509378]

約数ペア:

[(1, 21509378), (2, 10754689), (11, 1955398), (22, 977699), (941, 22858), (1039, 20702), (1882, 11429), (2078, 10351)]