21029255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19031}}^1$

素因数の和:19066

約数の個数: 16

約数和(自身を含む): 28776384

約数和(自身を除く): 7747129

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 19031, 95155, 247403, 323527, 1237015, 1617635, 4205851, 21029255]

約数ペア:

[(1, 21029255), (5, 4205851), (13, 1617635), (17, 1237015), (65, 323527), (85, 247403), (221, 95155), (1105, 19031)]