21523372

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{413911}}^1$

素因数の和:413928

約数の個数: 12

約数和(自身を含む): 40563376

約数和(自身を除く): 19040004

約数列:

[1, 2, 4, 13, 26, 52, 413911, 827822, 1655644, 5380843, 10761686, 21523372]

約数ペア:

[(1, 21523372), (2, 10761686), (4, 5380843), (13, 1655644), (26, 827822), (52, 413911)]