20818887

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9733}}^1$

素因数の和:9790

約数の個数: 16

約数和(自身を含む): 29902848

約数和(自身を除く): 9083961

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9733, 29199, 223859, 301723, 671577, 905169, 6939629, 20818887]

約数ペア:

[(1, 20818887), (3, 6939629), (23, 905169), (31, 671577), (69, 301723), (93, 223859), (713, 29199), (2139, 9733)]