20791731

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13151}}^1$

素因数の和:13202

約数の個数: 16

約数和(自身を含む): 30302208

約数和(自身を除く): 9510477

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 13151, 39453, 223567, 407681, 670701, 1223043, 6930577, 20791731]

約数ペア:

[(1, 20791731), (3, 6930577), (17, 1223043), (31, 670701), (51, 407681), (93, 223567), (527, 39453), (1581, 13151)]