902907

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 20

約数和(自身を含む): 1376496

約数和(自身を除く): 473589

約数列:

[1, 3, 9, 27, 71, 81, 157, 213, 471, 639, 1413, 1917, 4239, 5751, 11147, 12717, 33441, 100323, 300969, 902907]

約数ペア:

[(1, 902907), (3, 300969), (9, 100323), (27, 33441), (71, 12717), (81, 11147), (157, 5751), (213, 4239), (471, 1917), (639, 1413)]