21073107

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{4229}}^1$

素因数の和:4394

約数の個数: 16

約数和(自身を含む): 30862080

約数和(自身を除く): 9788973

約数列:

[1, 3, 11, 33, 151, 453, 1661, 4229, 4983, 12687, 46519, 139557, 638579, 1915737, 7024369, 21073107]

約数ペア:

[(1, 21073107), (3, 7024369), (11, 1915737), (33, 638579), (151, 139557), (453, 46519), (1661, 12687), (4229, 4983)]