19941086

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{2153}}^1$

素因数の和:2587

約数の個数: 16

約数和(自身を含む): 32723568

約数和(自身を除く): 12782482

約数列:

[1, 2, 11, 22, 421, 842, 2153, 4306, 4631, 9262, 23683, 47366, 906413, 1812826, 9970543, 19941086]

約数ペア:

[(1, 19941086), (2, 9970543), (11, 1812826), (22, 906413), (421, 47366), (842, 23683), (2153, 9262), (4306, 4631)]