21071270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{859}}^1$

素因数の和:1100

約数の個数: 32

約数和(自身を含む): 41610240

約数和(自身を除く): 20538970

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 223, 446, 859, 1115, 1718, 2230, 2453, 4295, 4906, 8590, 9449, 12265, 18898, 24530, 47245, 94490, 191557, 383114, 957785, 1915570, 2107127, 4214254, 10535635, 21071270]

約数ペア:

[(1, 21071270), (2, 10535635), (5, 4214254), (10, 2107127), (11, 1915570), (22, 957785), (55, 383114), (110, 191557), (223, 94490), (446, 47245), (859, 24530), (1115, 18898), (1718, 12265), (2230, 9449), (2453, 8590), (4295, 4906)]