21426115

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{1009}}^1$

素因数の和:1182

約数の個数: 16

約数和(自身を含む): 26760960

約数和(自身を除く): 5334845

約数列:

[1, 5, 31, 137, 155, 685, 1009, 4247, 5045, 21235, 31279, 138233, 156395, 691165, 4285223, 21426115]

約数ペア:

[(1, 21426115), (5, 4285223), (31, 691165), (137, 156395), (155, 138233), (685, 31279), (1009, 21235), (4247, 5045)]