287888913

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{57223}}^1$

素因数の和:57285

約数の個数: 24

約数和(自身を含む): 458249792

約数和(自身を除く): 170360879

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 57223, 171669, 515007, 743899, 2231697, 2460589, 6695091, 7381767, 22145301, 31987657, 95962971, 287888913]

約数ペア:

[(1, 287888913), (3, 95962971), (9, 31987657), (13, 22145301), (39, 7381767), (43, 6695091), (117, 2460589), (129, 2231697), (387, 743899), (559, 515007), (1677, 171669), (5031, 57223)]