247107

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^2$

素因数の和:99

約数の個数: 18

約数和(自身を含む): 392844

約数和(自身を除く): 145737

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 1681, 2009, 5043, 6027, 11767, 35301, 82369, 247107]

約数ペア:

[(1, 247107), (3, 82369), (7, 35301), (21, 11767), (41, 6027), (49, 5043), (123, 2009), (147, 1681), (287, 861)]