28807479

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 42597360

約数和(自身を除く): 13789881

約数列:

[1, 3, 9, 73, 163, 219, 269, 489, 657, 807, 1467, 2421, 11899, 19637, 35697, 43847, 58911, 107091, 131541, 176733, 394623, 3200831, 9602493, 28807479]

約数ペア:

[(1, 28807479), (3, 9602493), (9, 3200831), (73, 394623), (163, 176733), (219, 131541), (269, 107091), (489, 58911), (657, 43847), (807, 35697), (1467, 19637), (2421, 11899)]