21000306609

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{3323}}^1\times {\mathrm{9619}}^1$

素因数の和:13021

約数の個数: 24

約数和(自身を含む): 30761758560

約数和(自身を除く): 9761451951

約数列:

[1, 3, 9, 73, 219, 657, 3323, 9619, 9969, 28857, 29907, 86571, 242579, 702187, 727737, 2106561, 2183211, 6319683, 31963937, 95891811, 287675433, 2333367401, 7000102203, 21000306609]

約数ペア:

[(1, 21000306609), (3, 7000102203), (9, 2333367401), (73, 287675433), (219, 95891811), (657, 31963937), (3323, 6319683), (9619, 2183211), (9969, 2106561), (28857, 727737), (29907, 702187), (86571, 242579)]