21910810

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53441}}^1$

素因数の和:53489

約数の個数: 16

約数和(自身を含む): 40402152

約数和(自身を除く): 18491342

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53441, 106882, 267205, 534410, 2191081, 4382162, 10955405, 21910810]

約数ペア:

[(1, 21910810), (2, 10955405), (5, 4382162), (10, 2191081), (41, 534410), (82, 267205), (205, 106882), (410, 53441)]