18308025

素因数分解:

$3^4\times 5^2\times {\mathrm{9041}}^1$

素因数の和:9063

約数の個数: 30

約数和(自身を含む): 33916542

約数和(自身を除く): 15608517

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9041, 27123, 45205, 81369, 135615, 226025, 244107, 406845, 678075, 732321, 1220535, 2034225, 3661605, 6102675, 18308025]

約数ペア:

[(1, 18308025), (3, 6102675), (5, 3661605), (9, 2034225), (15, 1220535), (25, 732321), (27, 678075), (45, 406845), (75, 244107), (81, 226025), (135, 135615), (225, 81369), (405, 45205), (675, 27123), (2025, 9041)]