21859568

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{311}}^1$

素因数の和:533

約数の個数: 40

約数和(自身を含む): 44568576

約数和(自身を除く): 22709008

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 191, 311, 368, 382, 622, 764, 1244, 1528, 2488, 3056, 4393, 4976, 7153, 8786, 14306, 17572, 28612, 35144, 57224, 59401, 70288, 114448, 118802, 237604, 475208, 950416, 1366223, 2732446, 5464892, 10929784, 21859568]

約数ペア:

[(1, 21859568), (2, 10929784), (4, 5464892), (8, 2732446), (16, 1366223), (23, 950416), (46, 475208), (92, 237604), (184, 118802), (191, 114448), (311, 70288), (368, 59401), (382, 57224), (622, 35144), (764, 28612), (1244, 17572), (1528, 14306), (2488, 8786), (3056, 7153), (4393, 4976)]