20087431

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2063}}^1$

素因数の和:2190

約数の個数: 16

約数和(自身を含む): 24966144

約数和(自身を除く): 4878713

約数列:

[1, 7, 13, 91, 107, 749, 1391, 2063, 9737, 14441, 26819, 187733, 220741, 1545187, 2869633, 20087431]

約数ペア:

[(1, 20087431), (7, 2869633), (13, 1545187), (91, 220741), (107, 187733), (749, 26819), (1391, 14441), (2063, 9737)]