21152802836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{743}}^1\times {\mathrm{647033}}^1$

素因数の和:647791

約数の個数: 24

約数和(自身を含む): 40437036864

約数和(自身を除く): 19284234028

約数列:

[1, 2, 4, 11, 22, 44, 743, 1486, 2972, 8173, 16346, 32692, 647033, 1294066, 2588132, 7117363, 14234726, 28469452, 480745519, 961491038, 1922982076, 5288200709, 10576401418, 21152802836]

約数ペア:

[(1, 21152802836), (2, 10576401418), (4, 5288200709), (11, 1922982076), (22, 961491038), (44, 480745519), (743, 28469452), (1486, 14234726), (2972, 7117363), (8173, 2588132), (16346, 1294066), (32692, 647033)]