17719966

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1979}}^1$

素因数の和:2040

約数の個数: 24

約数和(自身を含む): 30020760

約数和(自身を除く): 12300794

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 1979, 3958, 4477, 8954, 21769, 43538, 73223, 146446, 239459, 478918, 805453, 1610906, 8859983, 17719966]

約数ペア:

[(1, 17719966), (2, 8859983), (11, 1610906), (22, 805453), (37, 478918), (74, 239459), (121, 146446), (242, 73223), (407, 43538), (814, 21769), (1979, 8954), (3958, 4477)]