28681731

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5701}}^1$

素因数の和:5763

約数の個数: 24

約数和(自身を含む): 45661616

約数和(自身を除く): 16979885

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 5701, 17103, 51309, 74113, 222339, 245143, 667017, 735429, 2206287, 3186859, 9560577, 28681731]

約数ペア:

[(1, 28681731), (3, 9560577), (9, 3186859), (13, 2206287), (39, 735429), (43, 667017), (117, 245143), (129, 222339), (387, 74113), (559, 51309), (1677, 17103), (5031, 5701)]