668836521

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{155797}}^1$

素因数の和:155862

約数の個数: 20

約数和(自身を含む): 1017984132

約数和(自身を除く): 349147611

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 155797, 467391, 1402173, 4206519, 8257241, 12619557, 24771723, 74315169, 222945507, 668836521]

約数ペア:

[(1, 668836521), (3, 222945507), (9, 74315169), (27, 24771723), (53, 12619557), (81, 8257241), (159, 4206519), (477, 1402173), (1431, 467391), (4293, 155797)]