21344990

素因数分解:

$2^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{3089}}^1$

素因数の和:3787

約数の個数: 16

約数和(自身を含む): 38489040

約数和(自身を除く): 17144050

約数列:

[1, 2, 5, 10, 691, 1382, 3089, 3455, 6178, 6910, 15445, 30890, 2134499, 4268998, 10672495, 21344990]

約数ペア:

[(1, 21344990), (2, 10672495), (5, 4268998), (10, 2134499), (691, 30890), (1382, 15445), (3089, 6910), (3455, 6178)]