20859905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{1093}}^1$

素因数の和:1456

約数の個数: 16

約数和(自身を含む): 27411264

約数和(自身を除く): 6551359

約数列:

[1, 5, 11, 55, 347, 1093, 1735, 3817, 5465, 12023, 19085, 60115, 379271, 1896355, 4171981, 20859905]

約数ペア:

[(1, 20859905), (5, 4171981), (11, 1896355), (55, 379271), (347, 60115), (1093, 19085), (1735, 12023), (3817, 5465)]