20607783

素因数分解:

$3^1\times 7^4\times {\mathrm{2861}}^1$

素因数の和:2892

約数の個数: 20

約数和(自身を含む): 32065848

約数和(自身を除く): 11458065

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 2861, 7203, 8583, 20027, 60081, 140189, 420567, 981323, 2943969, 6869261, 20607783]

約数ペア:

[(1, 20607783), (3, 6869261), (7, 2943969), (21, 981323), (49, 420567), (147, 140189), (343, 60081), (1029, 20027), (2401, 8583), (2861, 7203)]