13420971

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{2473}}^1$

素因数の和:2552

約数の個数: 20

約数和(自身を含む): 20356072

約数和(自身を除く): 6935101

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 2473, 5427, 7419, 22257, 66771, 165691, 200313, 497073, 1491219, 4473657, 13420971]

約数ペア:

[(1, 13420971), (3, 4473657), (9, 1491219), (27, 497073), (67, 200313), (81, 165691), (201, 66771), (603, 22257), (1809, 7419), (2473, 5427)]