20497928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5417}}^1$

素因数の和:5477

約数の個数: 32

約数和(自身を含む): 42910560

約数和(自身を除く): 22412632

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5417, 10834, 21668, 43336, 59587, 119174, 232931, 238348, 465862, 476696, 931724, 1863448, 2562241, 5124482, 10248964, 20497928]

約数ペア:

[(1, 20497928), (2, 10248964), (4, 5124482), (8, 2562241), (11, 1863448), (22, 931724), (43, 476696), (44, 465862), (86, 238348), (88, 232931), (172, 119174), (344, 59587), (473, 43336), (946, 21668), (1892, 10834), (3784, 5417)]