18835605

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{83}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 34735680

約数和(自身を除く): 15900075

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 83, 123, 135, 205, 249, 369, 415, 615, 747, 1107, 1245, 1681, 1845, 2241, 3403, 3735, 5043, 5535, 8405, 10209, 11205, 15129, 17015, 25215, 30627, 45387, 51045, 75645, 91881, 139523, 153135, 226935, 418569, 459405, 697615, 1255707, 2092845, 3767121, 6278535, 18835605]

約数ペア:

[(1, 18835605), (3, 6278535), (5, 3767121), (9, 2092845), (15, 1255707), (27, 697615), (41, 459405), (45, 418569), (83, 226935), (123, 153135), (135, 139523), (205, 91881), (249, 75645), (369, 51045), (415, 45387), (615, 30627), (747, 25215), (1107, 17015), (1245, 15129), (1681, 11205), (1845, 10209), (2241, 8405), (3403, 5535), (3735, 5043)]