18985455

素因数分解:

$3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2099}}^1$

素因数の和:2180

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 15286545

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 135, 201, 335, 603, 1005, 1809, 2099, 3015, 6297, 9045, 10495, 18891, 31485, 56673, 94455, 140633, 283365, 421899, 703165, 1265697, 2109495, 3797091, 6328485, 18985455]

約数ペア:

[(1, 18985455), (3, 6328485), (5, 3797091), (9, 2109495), (15, 1265697), (27, 703165), (45, 421899), (67, 283365), (135, 140633), (201, 94455), (335, 56673), (603, 31485), (1005, 18891), (1809, 10495), (2099, 9045), (3015, 6297)]