20470881

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5119}}^1$

素因数の和:5196

約数の個数: 16

約数和(自身を含む): 28835840

約数和(自身を除く): 8364959

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5119, 15357, 158689, 220117, 476067, 660351, 6823627, 20470881]

約数ペア:

[(1, 20470881), (3, 6823627), (31, 660351), (43, 476067), (93, 220117), (129, 158689), (1333, 15357), (3999, 5119)]