18720713

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:424

約数の個数: 16

約数和(自身を含む): 21041856

約数和(自身を除く): 2321143

約数列:

[1, 11, 53, 163, 197, 583, 1793, 2167, 8639, 10441, 32111, 95029, 114851, 353221, 1701883, 18720713]

約数ペア:

[(1, 18720713), (11, 1701883), (53, 353221), (163, 114851), (197, 95029), (583, 32111), (1793, 10441), (2167, 8639)]