20847931

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 23184000

約数和(自身を除く): 2336069

約数列:

[1, 13, 47, 149, 229, 611, 1937, 2977, 7003, 10763, 34121, 91039, 139919, 443573, 1603687, 20847931]

約数ペア:

[(1, 20847931), (13, 1603687), (47, 443573), (149, 139919), (229, 91039), (611, 34121), (1937, 10763), (2977, 7003)]