20338251

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1489}}^1$

素因数の和:1678

約数の個数: 16

約数和(自身を含む): 28250400

約数和(自身を除く): 7912149

約数列:

[1, 3, 29, 87, 157, 471, 1489, 4467, 4553, 13659, 43181, 129543, 233773, 701319, 6779417, 20338251]

約数ペア:

[(1, 20338251), (3, 6779417), (29, 701319), (87, 233773), (157, 129543), (471, 43181), (1489, 13659), (4467, 4553)]