278121519

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{29347}}^1$

素因数の和:29378

約数の個数: 28

約数和(自身を含む): 449083096

約数和(自身を除く): 170961577

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 3159, 9477, 29347, 88041, 264123, 381511, 792369, 1144533, 2377107, 3433599, 7131321, 10300797, 21393963, 30902391, 92707173, 278121519]

約数ペア:

[(1, 278121519), (3, 92707173), (9, 30902391), (13, 21393963), (27, 10300797), (39, 7131321), (81, 3433599), (117, 2377107), (243, 1144533), (351, 792369), (729, 381511), (1053, 264123), (3159, 88041), (9477, 29347)]