18400905

素因数分解:

$3^3\times 5^1\times {\mathrm{136303}}^1$

素因数の和:136317

約数の個数: 16

約数和(自身を含む): 32712960

約数和(自身を除く): 14312055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 136303, 408909, 681515, 1226727, 2044545, 3680181, 6133635, 18400905]

約数ペア:

[(1, 18400905), (3, 6133635), (5, 3680181), (9, 2044545), (15, 1226727), (27, 681515), (45, 408909), (135, 136303)]