21026343

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{11471}}^1$

素因数の和:11534

約数の個数: 16

約数和(自身を含む): 30836736

約数和(自身を除く): 9810393

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 11471, 34413, 149123, 447369, 539137, 1617411, 7008781, 21026343]

約数ペア:

[(1, 21026343), (3, 7008781), (13, 1617411), (39, 539137), (47, 447369), (141, 149123), (611, 34413), (1833, 11471)]