20393709

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{42223}}^1$

素因数の和:42256

約数の個数: 16

約数和(自身を含む): 32428032

約数和(自身を除く): 12034323

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 42223, 126669, 295561, 886683, 971129, 2913387, 6797903, 20393709]

約数ペア:

[(1, 20393709), (3, 6797903), (7, 2913387), (21, 971129), (23, 886683), (69, 295561), (161, 126669), (483, 42223)]