20790902

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49739}}^1$

素因数の和:49771

約数の個数: 16

約数和(自身を含む): 35812800

約数和(自身を除く): 15021898

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 49739, 99478, 547129, 945041, 1094258, 1890082, 10395451, 20790902]

約数ペア:

[(1, 20790902), (2, 10395451), (11, 1890082), (19, 1094258), (22, 945041), (38, 547129), (209, 99478), (418, 49739)]