16978021209

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{2273}}^1\times {\mathrm{11369}}^1$

素因数の和:13721

約数の個数: 24

約数和(自身を含む): 24872875560

約数和(自身を除く): 7894854351

約数列:

[1, 3, 9, 73, 219, 657, 2273, 6819, 11369, 20457, 34107, 102321, 165929, 497787, 829937, 1493361, 2489811, 7469433, 25841737, 77525211, 232575633, 1886446801, 5659340403, 16978021209]

約数ペア:

[(1, 16978021209), (3, 5659340403), (9, 1886446801), (73, 232575633), (219, 77525211), (657, 25841737), (2273, 7469433), (6819, 2489811), (11369, 1493361), (20457, 829937), (34107, 497787), (102321, 165929)]