20863641

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{1307}}^1$

素因数の和:1640

約数の個数: 16

約数和(自身を含む): 29571264

約数和(自身を除く): 8707623

約数列:

[1, 3, 17, 51, 313, 939, 1307, 3921, 5321, 15963, 22219, 66657, 409091, 1227273, 6954547, 20863641]

約数ペア:

[(1, 20863641), (3, 6954547), (17, 1227273), (51, 409091), (313, 66657), (939, 22219), (1307, 15963), (3921, 5321)]