20125281

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{4093}}^1$

素因数の和:4256

約数の個数: 16

約数和(自身を含む): 29476800

約数和(自身を除く): 9351519

約数列:

[1, 3, 11, 33, 149, 447, 1639, 4093, 4917, 12279, 45023, 135069, 609857, 1829571, 6708427, 20125281]

約数ペア:

[(1, 20125281), (3, 6708427), (11, 1829571), (33, 609857), (149, 135069), (447, 45023), (1639, 12279), (4093, 4917)]