20407718

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{1543}}^1$

素因数の和:1951

約数の個数: 16

約数和(自身を含む): 32516640

約数和(自身を除く): 12108922

約数列:

[1, 2, 17, 34, 389, 778, 1543, 3086, 6613, 13226, 26231, 52462, 600227, 1200454, 10203859, 20407718]

約数ペア:

[(1, 20407718), (2, 10203859), (17, 1200454), (34, 600227), (389, 52462), (778, 26231), (1543, 13226), (3086, 6613)]