28213275

素因数分解:

$3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{3329}}^1$

素因数の和:3455

約数の個数: 24

約数和(自身を含む): 47072880

約数和(自身を除く): 18859605

約数列:

[1, 3, 5, 15, 25, 75, 113, 339, 565, 1695, 2825, 3329, 8475, 9987, 16645, 49935, 83225, 249675, 376177, 1128531, 1880885, 5642655, 9404425, 28213275]

約数ペア:

[(1, 28213275), (3, 9404425), (5, 5642655), (15, 1880885), (25, 1128531), (75, 376177), (113, 249675), (339, 83225), (565, 49935), (1695, 16645), (2825, 9987), (3329, 8475)]