19853375

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{2237}}^1$

素因数の和:2323

約数の個数: 16

約数和(自身を含む): 25137216

約数和(自身を除く): 5283841

約数列:

[1, 5, 25, 71, 125, 355, 1775, 2237, 8875, 11185, 55925, 158827, 279625, 794135, 3970675, 19853375]

約数ペア:

[(1, 19853375), (5, 3970675), (25, 794135), (71, 279625), (125, 158827), (355, 55925), (1775, 11185), (2237, 8875)]