18768795

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 31309824

約数和(自身を除く): 12541029

約数列:

[1, 3, 5, 15, 31, 93, 155, 181, 223, 465, 543, 669, 905, 1115, 2715, 3345, 5611, 6913, 16833, 20739, 28055, 34565, 40363, 84165, 103695, 121089, 201815, 605445, 1251253, 3753759, 6256265, 18768795]

約数ペア:

[(1, 18768795), (3, 6256265), (5, 3753759), (15, 1251253), (31, 605445), (93, 201815), (155, 121089), (181, 103695), (223, 84165), (465, 40363), (543, 34565), (669, 28055), (905, 20739), (1115, 16833), (2715, 6913), (3345, 5611)]