18216405

素因数分解:

$3^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1277}}^1$

素因数の和:1605

約数の個数: 24

約数和(自身を含む): 31699512

約数和(自身を除く): 13483107

約数列:

[1, 3, 5, 9, 15, 45, 317, 951, 1277, 1585, 2853, 3831, 4755, 6385, 11493, 14265, 19155, 57465, 404809, 1214427, 2024045, 3643281, 6072135, 18216405]

約数ペア:

[(1, 18216405), (3, 6072135), (5, 3643281), (9, 2024045), (15, 1214427), (45, 404809), (317, 57465), (951, 19155), (1277, 14265), (1585, 11493), (2853, 6385), (3831, 4755)]