19907789187

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{653593}}^1$

素因数の和:653691

約数の個数: 32

約数和(自身を含む): 31623492096

約数和(自身を除く): 11715702909

約数列:

[1, 3, 11, 13, 33, 39, 71, 143, 213, 429, 781, 923, 2343, 2769, 10153, 30459, 653593, 1960779, 7189523, 8496709, 21568569, 25490127, 46405103, 93463799, 139215309, 280391397, 510456133, 603266339, 1531368399, 1809799017, 6635929729, 19907789187]

約数ペア:

[(1, 19907789187), (3, 6635929729), (11, 1809799017), (13, 1531368399), (33, 603266339), (39, 510456133), (71, 280391397), (143, 139215309), (213, 93463799), (429, 46405103), (781, 25490127), (923, 21568569), (2343, 8496709), (2769, 7189523), (10153, 1960779), (30459, 653593)]