17998145

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 24131520

約数和(自身を除く): 6133375

約数列:

[1, 5, 11, 55, 71, 121, 355, 419, 605, 781, 2095, 3905, 4609, 8591, 23045, 29749, 42955, 50699, 148745, 253495, 327239, 1636195, 3599629, 17998145]

約数ペア:

[(1, 17998145), (5, 3599629), (11, 1636195), (55, 327239), (71, 253495), (121, 148745), (355, 50699), (419, 42955), (605, 29749), (781, 23045), (2095, 8591), (3905, 4609)]