19880883

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:497

約数の個数: 40

約数和(自身を含む): 33088176

約数和(自身を除く): 13207293

約数列:

[1, 3, 9, 11, 27, 33, 53, 81, 99, 159, 297, 421, 477, 583, 891, 1263, 1431, 1749, 3789, 4293, 4631, 5247, 11367, 13893, 15741, 22313, 34101, 41679, 47223, 66939, 125037, 200817, 245443, 375111, 602451, 736329, 1807353, 2208987, 6626961, 19880883]

約数ペア:

[(1, 19880883), (3, 6626961), (9, 2208987), (11, 1807353), (27, 736329), (33, 602451), (53, 375111), (81, 245443), (99, 200817), (159, 125037), (297, 66939), (421, 47223), (477, 41679), (583, 34101), (891, 22313), (1263, 15741), (1431, 13893), (1749, 11367), (3789, 5247), (4293, 4631)]