28664428

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{42403}}^1$

素因数の和:42433

約数の個数: 18

約数和(自身を含む): 54319524

約数和(自身を除く): 25655096

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 42403, 84806, 169612, 551239, 1102478, 2204956, 7166107, 14332214, 28664428]

約数ペア:

[(1, 28664428), (2, 14332214), (4, 7166107), (13, 2204956), (26, 1102478), (52, 551239), (169, 169612), (338, 84806), (676, 42403)]