20842385

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2861}}^1$

素因数の和:2944

約数の個数: 16

約数和(自身を含む): 26376192

約数和(自身を除く): 5533807

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2861, 7285, 14305, 88691, 134467, 443455, 672335, 4168477, 20842385]

約数ペア:

[(1, 20842385), (5, 4168477), (31, 672335), (47, 443455), (155, 134467), (235, 88691), (1457, 14305), (2861, 7285)]