18187089

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 26784000

約数和(自身を除く): 8596911

約数列:

[1, 3, 23, 29, 61, 69, 87, 149, 183, 447, 667, 1403, 1769, 2001, 3427, 4209, 4321, 5307, 9089, 10281, 12963, 27267, 40687, 99383, 122061, 209047, 263581, 298149, 627141, 790743, 6062363, 18187089]

約数ペア:

[(1, 18187089), (3, 6062363), (23, 790743), (29, 627141), (61, 298149), (69, 263581), (87, 209047), (149, 122061), (183, 99383), (447, 40687), (667, 27267), (1403, 12963), (1769, 10281), (2001, 9089), (3427, 5307), (4209, 4321)]