20403856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{115931}}^1$

素因数の和:115950

約数の個数: 20

約数和(自身を含む): 43126704

約数和(自身を除く): 22722848

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 115931, 231862, 463724, 927448, 1275241, 1854896, 2550482, 5100964, 10201928, 20403856]

約数ペア:

[(1, 20403856), (2, 10201928), (4, 5100964), (8, 2550482), (11, 1854896), (16, 1275241), (22, 927448), (44, 463724), (88, 231862), (176, 115931)]