21495080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28283}}^1$

素因数の和:28313

約数の個数: 32

約数和(自身を含む): 50911200

約数和(自身を除く): 29416120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28283, 56566, 113132, 141415, 226264, 282830, 537377, 565660, 1074754, 1131320, 2149508, 2686885, 4299016, 5373770, 10747540, 21495080]

約数ペア:

[(1, 21495080), (2, 10747540), (4, 5373770), (5, 4299016), (8, 2686885), (10, 2149508), (19, 1131320), (20, 1074754), (38, 565660), (40, 537377), (76, 282830), (95, 226264), (152, 141415), (190, 113132), (380, 56566), (760, 28283)]