20986955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{10313}}^1$

素因数の和:10366

約数の個数: 16

約数和(自身を含む): 28219104

約数和(自身を除く): 7232149

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 10313, 51565, 113443, 381581, 567215, 1907905, 4197391, 20986955]

約数ペア:

[(1, 20986955), (5, 4197391), (11, 1907905), (37, 567215), (55, 381581), (185, 113443), (407, 51565), (2035, 10313)]