20922811

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5347}}^1$

素因数の和:5410

約数の個数: 16

約数和(自身を含む): 26354944

約数和(自身を除く): 5432133

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 5347, 37429, 69511, 229921, 486577, 1609447, 2988973, 20922811]

約数ペア:

[(1, 20922811), (7, 2988973), (13, 1609447), (43, 486577), (91, 229921), (301, 69511), (559, 37429), (3913, 5347)]