1287657

素因数分解:

$3^5\times 7^1\times {\mathrm{757}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 2207296

約数和(自身を除く): 919639

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 757, 1701, 2271, 5299, 6813, 15897, 20439, 47691, 61317, 143073, 183951, 429219, 1287657]

約数ペア:

[(1, 1287657), (3, 429219), (7, 183951), (9, 143073), (21, 61317), (27, 47691), (63, 20439), (81, 15897), (189, 6813), (243, 5299), (567, 2271), (757, 1701)]