20591319

素因数分解:

$3^1\times 7^3\times {\mathrm{20011}}^1$

素因数の和:20035

約数の個数: 16

約数和(自身を含む): 32019200

約数和(自身を除く): 11427881

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 20011, 60033, 140077, 420231, 980539, 2941617, 6863773, 20591319]

約数ペア:

[(1, 20591319), (3, 6863773), (7, 2941617), (21, 980539), (49, 420231), (147, 140077), (343, 60033), (1029, 20011)]