21421054

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{7079}}^1$

素因数の和:7187

約数の個数: 16

約数和(自身を含む): 34408800

約数和(自身を除く): 12987746

約数列:

[1, 2, 17, 34, 89, 178, 1513, 3026, 7079, 14158, 120343, 240686, 630031, 1260062, 10710527, 21421054]

約数ペア:

[(1, 21421054), (2, 10710527), (17, 1260062), (34, 630031), (89, 240686), (178, 120343), (1513, 14158), (3026, 7079)]