20858486

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{3967}}^1$

素因数の和:4219

約数の個数: 16

約数和(自身を含む): 34283520

約数和(自身を除く): 13425034

約数列:

[1, 2, 11, 22, 239, 478, 2629, 3967, 5258, 7934, 43637, 87274, 948113, 1896226, 10429243, 20858486]

約数ペア:

[(1, 20858486), (2, 10429243), (11, 1896226), (22, 948113), (239, 87274), (478, 43637), (2629, 7934), (3967, 5258)]