18918225

素因数分解:

$3^3\times 5^2\times {\mathrm{28027}}^1$

素因数の和:28046

約数の個数: 24

約数和(自身を含む): 34754720

約数和(自身を除く): 15836495

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 28027, 84081, 140135, 252243, 420405, 700675, 756729, 1261215, 2102025, 3783645, 6306075, 18918225]

約数ペア:

[(1, 18918225), (3, 6306075), (5, 3783645), (9, 2102025), (15, 1261215), (25, 756729), (27, 700675), (45, 420405), (75, 252243), (135, 140135), (225, 84081), (675, 28027)]