18770415

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1327}}^1$

素因数の和:1399

約数の個数: 32

約数和(自身を含む): 32126976

約数和(自身を除く): 13356561

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1327, 2829, 3981, 4715, 6635, 14145, 19905, 30521, 54407, 91563, 152605, 163221, 272035, 457815, 816105, 1251361, 3754083, 6256805, 18770415]

約数ペア:

[(1, 18770415), (3, 6256805), (5, 3754083), (15, 1251361), (23, 816105), (41, 457815), (69, 272035), (115, 163221), (123, 152605), (205, 91563), (345, 54407), (615, 30521), (943, 19905), (1327, 14145), (2829, 6635), (3981, 4715)]