28679715

素因数分解:

$3^2\times 5^1\times {\mathrm{637327}}^1$

素因数の和:637338

約数の個数: 12

約数和(自身を含む): 49711584

約数和(自身を除く): 21031869

約数列:

[1, 3, 5, 9, 15, 45, 637327, 1911981, 3186635, 5735943, 9559905, 28679715]

約数ペア:

[(1, 28679715), (3, 9559905), (5, 5735943), (9, 3186635), (15, 1911981), (45, 637327)]