21151856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120181}}^1$

素因数の和:120200

約数の個数: 20

約数和(自身を含む): 44707704

約数和(自身を除く): 23555848

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120181, 240362, 480724, 961448, 1321991, 1922896, 2643982, 5287964, 10575928, 21151856]

約数ペア:

[(1, 21151856), (2, 10575928), (4, 5287964), (8, 2643982), (11, 1922896), (16, 1321991), (22, 961448), (44, 480724), (88, 240362), (176, 120181)]