21972613

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1788

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 3308027

約数列:

[1, 13, 23, 43, 299, 559, 989, 1709, 12857, 22217, 39307, 73487, 510991, 955331, 1690201, 21972613]

約数ペア:

[(1, 21972613), (13, 1690201), (23, 955331), (43, 510991), (299, 73487), (559, 39307), (989, 22217), (1709, 12857)]