21720534806

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{1226179}}^1$

素因数の和:1226719

約数の個数: 16

約数和(自身を含む): 34563561840

約数和(自身を除く): 12843027034

約数列:

[1, 2, 17, 34, 521, 1042, 8857, 17714, 1226179, 2452358, 20845043, 41690086, 638839259, 1277678518, 10860267403, 21720534806]

約数ペア:

[(1, 21720534806), (2, 10860267403), (17, 1277678518), (34, 638839259), (521, 41690086), (1042, 20845043), (8857, 2452358), (17714, 1226179)]