20944777

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 24553984

約数和(自身を除く): 3609207

約数列:

[1, 7, 61, 181, 271, 427, 1267, 1897, 11041, 16531, 49051, 77287, 115717, 343357, 2992111, 20944777]

約数ペア:

[(1, 20944777), (7, 2992111), (61, 343357), (181, 115717), (271, 77287), (427, 49051), (1267, 16531), (1897, 11041)]