21171568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120293}}^1$

素因数の和:120312

約数の個数: 20

約数和(自身を含む): 44749368

約数和(自身を除く): 23577800

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120293, 240586, 481172, 962344, 1323223, 1924688, 2646446, 5292892, 10585784, 21171568]

約数ペア:

[(1, 21171568), (2, 10585784), (4, 5292892), (8, 2646446), (11, 1924688), (16, 1323223), (22, 962344), (44, 481172), (88, 240586), (176, 120293)]