21116230

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51503}}^1$

素因数の和:51551

約数の個数: 16

約数和(自身を含む): 38937024

約数和(自身を除く): 17820794

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51503, 103006, 257515, 515030, 2111623, 4223246, 10558115, 21116230]

約数ペア:

[(1, 21116230), (2, 10558115), (5, 4223246), (10, 2111623), (41, 515030), (82, 257515), (205, 103006), (410, 51503)]