20331381

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{31231}}^1$

素因数の和:31272

約数の個数: 16

約数和(自身を含む): 31981568

約数和(自身を除く): 11650187

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 31231, 93693, 218617, 655851, 968161, 2904483, 6777127, 20331381]

約数ペア:

[(1, 20331381), (3, 6777127), (7, 2904483), (21, 968161), (31, 655851), (93, 218617), (217, 93693), (651, 31231)]