990999359

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{72341}}^1$

素因数の和:72470

約数の個数: 16

約数和(自身を含む): 1203770880

約数和(自身を除く): 212771521

約数列:

[1, 7, 19, 103, 133, 721, 1957, 13699, 72341, 506387, 1374479, 7451123, 9621353, 52157861, 141571337, 990999359]

約数ペア:

[(1, 990999359), (7, 141571337), (19, 52157861), (103, 9621353), (133, 7451123), (721, 1374479), (1957, 506387), (13699, 72341)]