20872490

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{19507}}^1$

素因数の和:19621

約数の個数: 16

約数和(自身を含む): 37923552

約数和(自身を除く): 17051062

約数列:

[1, 2, 5, 10, 107, 214, 535, 1070, 19507, 39014, 97535, 195070, 2087249, 4174498, 10436245, 20872490]

約数ペア:

[(1, 20872490), (2, 10436245), (5, 4174498), (10, 2087249), (107, 195070), (214, 97535), (535, 39014), (1070, 19507)]