20455101

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 30270240

約数和(自身を除く): 9815139

約数列:

[1, 3, 9, 83, 139, 197, 249, 417, 591, 747, 1251, 1773, 11537, 16351, 27383, 34611, 49053, 82149, 103833, 147159, 246447, 2272789, 6818367, 20455101]

約数ペア:

[(1, 20455101), (3, 6818367), (9, 2272789), (83, 246447), (139, 147159), (197, 103833), (249, 82149), (417, 49053), (591, 34611), (747, 27383), (1251, 16351), (1773, 11537)]