20840456

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28627}}^1$

素因数の和:28653

約数の個数: 32

約数和(自身を含む): 48095040

約数和(自身を除く): 27254584

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28627, 57254, 114508, 200389, 229016, 372151, 400778, 744302, 801556, 1488604, 1603112, 2605057, 2977208, 5210114, 10420228, 20840456]

約数ペア:

[(1, 20840456), (2, 10420228), (4, 5210114), (7, 2977208), (8, 2605057), (13, 1603112), (14, 1488604), (26, 801556), (28, 744302), (52, 400778), (56, 372151), (91, 229016), (104, 200389), (182, 114508), (364, 57254), (728, 28627)]