20986833

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43451}}^1$

素因数の和:43484

約数の個数: 16

約数和(自身を含む): 33371136

約数和(自身を除く): 12384303

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43451, 130353, 304157, 912471, 999373, 2998119, 6995611, 20986833]

約数ペア:

[(1, 20986833), (3, 6995611), (7, 2998119), (21, 999373), (23, 912471), (69, 304157), (161, 130353), (483, 43451)]