28821385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4273}}^1$

素因数の和:4368

約数の個数: 16

約数和(自身を含む): 36927360

約数和(自身を除く): 8105975

約数列:

[1, 5, 19, 71, 95, 355, 1349, 4273, 6745, 21365, 81187, 303383, 405935, 1516915, 5764277, 28821385]

約数ペア:

[(1, 28821385), (5, 5764277), (19, 1516915), (71, 405935), (95, 303383), (355, 81187), (1349, 21365), (4273, 6745)]