18213705

素因数分解:

$3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3187}}^1$

素因数の和:3325

約数の個数: 24

約数和(自身を含む): 31828992

約数和(自身を除く): 13615287

約数列:

[1, 3, 5, 9, 15, 45, 127, 381, 635, 1143, 1905, 3187, 5715, 9561, 15935, 28683, 47805, 143415, 404749, 1214247, 2023745, 3642741, 6071235, 18213705]

約数ペア:

[(1, 18213705), (3, 6071235), (5, 3642741), (9, 2023745), (15, 1214247), (45, 404749), (127, 143415), (381, 47805), (635, 28683), (1143, 15935), (1905, 9561), (3187, 5715)]