20456001

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 30760704

約数和(自身を除く): 10304703

約数列:

[1, 3, 9, 31, 93, 157, 279, 467, 471, 1401, 1413, 4203, 4867, 14477, 14601, 43431, 43803, 73319, 130293, 219957, 659871, 2272889, 6818667, 20456001]

約数ペア:

[(1, 20456001), (3, 6818667), (9, 2272889), (31, 659871), (93, 219957), (157, 130293), (279, 73319), (467, 43803), (471, 43431), (1401, 14601), (1413, 14477), (4203, 4867)]