28731899

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3797}}^1$

素因数の和:3874

約数の個数: 16

約数和(自身を含む): 35002368

約数和(自身を除く): 6270469

約数列:

[1, 7, 23, 47, 161, 329, 1081, 3797, 7567, 26579, 87331, 178459, 611317, 1249213, 4104557, 28731899]

約数ペア:

[(1, 28731899), (7, 4104557), (23, 1249213), (47, 611317), (161, 178459), (329, 87331), (1081, 26579), (3797, 7567)]