20618143

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{9851}}^1$

素因数の和:9894

約数の個数: 16

約数和(自身を含む): 26482176

約数和(自身を除く): 5864033

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 9851, 68957, 128063, 226573, 896441, 1586011, 2945449, 20618143]

約数ペア:

[(1, 20618143), (7, 2945449), (13, 1586011), (23, 896441), (91, 226573), (161, 128063), (299, 68957), (2093, 9851)]