13213905

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 22084608

約数和(自身を除く): 8870703

約数列:

[1, 3, 5, 15, 31, 93, 155, 157, 181, 465, 471, 543, 785, 905, 2355, 2715, 4867, 5611, 14601, 16833, 24335, 28055, 28417, 73005, 84165, 85251, 142085, 426255, 880927, 2642781, 4404635, 13213905]

約数ペア:

[(1, 13213905), (3, 4404635), (5, 2642781), (15, 880927), (31, 426255), (93, 142085), (155, 85251), (157, 84165), (181, 73005), (465, 28417), (471, 28055), (543, 24335), (785, 16833), (905, 14601), (2355, 5611), (2715, 4867)]