20021477

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3361}}^1$

素因数の和:3428

約数の個数: 16

約数和(自身を含む): 24529152

約数和(自身を除く): 4507675

約数列:

[1, 7, 23, 37, 161, 259, 851, 3361, 5957, 23527, 77303, 124357, 541121, 870499, 2860211, 20021477]

約数ペア:

[(1, 20021477), (7, 2860211), (23, 870499), (37, 541121), (161, 124357), (259, 77303), (851, 23527), (3361, 5957)]