9980821701

素因数分解:

$3^4\times {\mathrm{191}}^1\times {\mathrm{645131}}^1$

素因数の和:645334

約数の個数: 20

約数和(自身を含む): 14987706624

約数和(自身を除く): 5006884923

約数列:

[1, 3, 9, 27, 81, 191, 573, 1719, 5157, 15471, 645131, 1935393, 5806179, 17418537, 52255611, 123220021, 369660063, 1108980189, 3326940567, 9980821701]

約数ペア:

[(1, 9980821701), (3, 3326940567), (9, 1108980189), (27, 369660063), (81, 123220021), (191, 52255611), (573, 17418537), (1719, 5806179), (5157, 1935393), (15471, 645131)]