20831445

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6709}}^1$

素因数の和:6746

約数の個数: 32

約数和(自身を含む): 38649600

約数和(自身を除く): 17818155

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 6709, 20127, 33545, 60381, 100635, 154307, 181143, 301905, 462921, 771535, 905715, 1388763, 2314605, 4166289, 6943815, 20831445]

約数ペア:

[(1, 20831445), (3, 6943815), (5, 4166289), (9, 2314605), (15, 1388763), (23, 905715), (27, 771535), (45, 462921), (69, 301905), (115, 181143), (135, 154307), (207, 100635), (345, 60381), (621, 33545), (1035, 20127), (3105, 6709)]