20665438

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{1531}}^1$

素因数の和:1947

約数の個数: 16

約数和(自身を含む): 32925744

約数和(自身を除く): 12260306

約数列:

[1, 2, 17, 34, 397, 794, 1531, 3062, 6749, 13498, 26027, 52054, 607807, 1215614, 10332719, 20665438]

約数ペア:

[(1, 20665438), (2, 10332719), (17, 1215614), (34, 607807), (397, 52054), (794, 26027), (1531, 13498), (3062, 6749)]