21986954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{27011}}^1$

素因数の和:27061

約数の個数: 16

約数和(自身を含む): 36952416

約数和(自身を除く): 14965462

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 27011, 54022, 297121, 594242, 999407, 1998814, 10993477, 21986954]

約数ペア:

[(1, 21986954), (2, 10993477), (11, 1998814), (22, 999407), (37, 594242), (74, 297121), (407, 54022), (814, 27011)]