20656385

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1877}}^1$

素因数の和:1984

約数の個数: 16

約数和(自身を含む): 25961472

約数和(自身を除く): 5305087

約数列:

[1, 5, 31, 71, 155, 355, 1877, 2201, 9385, 11005, 58187, 133267, 290935, 666335, 4131277, 20656385]

約数ペア:

[(1, 20656385), (5, 4131277), (31, 666335), (71, 290935), (155, 133267), (355, 58187), (1877, 11005), (2201, 9385)]