13811275

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 17998848

約数和(自身を除く): 4187573

約数列:

[1, 5, 25, 31, 71, 155, 251, 355, 775, 1255, 1775, 2201, 6275, 7781, 11005, 17821, 38905, 55025, 89105, 194525, 445525, 552451, 2762255, 13811275]

約数ペア:

[(1, 13811275), (5, 2762255), (25, 552451), (31, 445525), (71, 194525), (155, 89105), (251, 55025), (355, 38905), (775, 17821), (1255, 11005), (1775, 7781), (2201, 6275)]