18278415

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9907}}^1$

素因数の和:9959

約数の個数: 24

約数和(自身を含む): 32458608

約数和(自身を除く): 14180193

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 9907, 29721, 49535, 89163, 148605, 406187, 445815, 1218561, 2030935, 3655683, 6092805, 18278415]

約数ペア:

[(1, 18278415), (3, 6092805), (5, 3655683), (9, 2030935), (15, 1218561), (41, 445815), (45, 406187), (123, 148605), (205, 89163), (369, 49535), (615, 29721), (1845, 9907)]