20685993

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{733}}^1$

素因数の和:1168

約数の個数: 16

約数和(自身を含む): 28890240

約数和(自身を除く): 8204247

約数列:

[1, 3, 23, 69, 409, 733, 1227, 2199, 9407, 16859, 28221, 50577, 299797, 899391, 6895331, 20685993]

約数ペア:

[(1, 20685993), (3, 6895331), (23, 899391), (69, 299797), (409, 50577), (733, 28221), (1227, 16859), (2199, 9407)]