19690138

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{2389}}^1$

素因数の和:2721

約数の個数: 16

約数和(自身を含む): 31920840

約数和(自身を除く): 12230702

約数列:

[1, 2, 13, 26, 317, 634, 2389, 4121, 4778, 8242, 31057, 62114, 757313, 1514626, 9845069, 19690138]

約数ペア:

[(1, 19690138), (2, 9845069), (13, 1514626), (26, 757313), (317, 62114), (634, 31057), (2389, 8242), (4121, 4778)]