20640334

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72169}}^1$

素因数の和:72195

約数の個数: 16

約数和(自身を含む): 36373680

約数和(自身を除く): 15733346

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 72169, 144338, 793859, 938197, 1587718, 1876394, 10320167, 20640334]

約数ペア:

[(1, 20640334), (2, 10320167), (11, 1876394), (13, 1587718), (22, 938197), (26, 793859), (143, 144338), (286, 72169)]