19147509

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{2437}}^1$

素因数の和:2546

約数の個数: 20

約数和(自身を含む): 28909804

約数和(自身を除く): 9762295

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2437, 2619, 7311, 7857, 21933, 65799, 197397, 236389, 709167, 2127501, 6382503, 19147509]

約数ペア:

[(1, 19147509), (3, 6382503), (9, 2127501), (27, 709167), (81, 236389), (97, 197397), (291, 65799), (873, 21933), (2437, 7857), (2619, 7311)]