21906730

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{6277}}^1$

素因数の和:6633

約数の個数: 16

約数和(自身を含む): 39551400

約数和(自身を除く): 17644670

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 6277, 12554, 31385, 62770, 2190673, 4381346, 10953365, 21906730]

約数ペア:

[(1, 21906730), (2, 10953365), (5, 4381346), (10, 2190673), (349, 62770), (698, 31385), (1745, 12554), (3490, 6277)]