20657079

素因数分解:

$3^3\times {\mathrm{487}}^1\times {\mathrm{1571}}^1$

素因数の和:2067

約数の個数: 16

約数和(自身を含む): 30685440

約数和(自身を除く): 10028361

約数列:

[1, 3, 9, 27, 487, 1461, 1571, 4383, 4713, 13149, 14139, 42417, 765077, 2295231, 6885693, 20657079]

約数ペア:

[(1, 20657079), (3, 6885693), (9, 2295231), (27, 765077), (487, 42417), (1461, 14139), (1571, 13149), (4383, 4713)]