20104231

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{647}}^1$

素因数の和:870

約数の個数: 16

約数和(自身を含む): 24136704

約数和(自身を除く): 4032473

約数列:

[1, 7, 23, 161, 193, 647, 1351, 4439, 4529, 14881, 31073, 104167, 124871, 874097, 2872033, 20104231]

約数ペア:

[(1, 20104231), (7, 2872033), (23, 874097), (161, 124871), (193, 104167), (647, 31073), (1351, 14881), (4439, 4529)]