7739991

素因数分解:

$3^2\times 7^2\times {\mathrm{17551}}^1$

素因数の和:17571

約数の個数: 18

約数和(自身を含む): 13006032

約数和(自身を除く): 5266041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 17551, 52653, 122857, 157959, 368571, 859999, 1105713, 2579997, 7739991]

約数ペア:

[(1, 7739991), (3, 2579997), (7, 1105713), (9, 859999), (21, 368571), (49, 157959), (63, 122857), (147, 52653), (441, 17551)]