20842172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{3547}}^1$

素因数の和:3677

約数の個数: 24

約数和(自身を含む): 39638256

約数和(自身を除く): 18796084

約数列:

[1, 2, 4, 13, 26, 52, 113, 226, 452, 1469, 2938, 3547, 5876, 7094, 14188, 46111, 92222, 184444, 400811, 801622, 1603244, 5210543, 10421086, 20842172]

約数ペア:

[(1, 20842172), (2, 10421086), (4, 5210543), (13, 1603244), (26, 801622), (52, 400811), (113, 184444), (226, 92222), (452, 46111), (1469, 14188), (2938, 7094), (3547, 5876)]