21279610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193451}}^1$

素因数の和:193469

約数の個数: 16

約数和(自身を含む): 41785632

約数和(自身を除く): 20506022

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193451, 386902, 967255, 1934510, 2127961, 4255922, 10639805, 21279610]

約数ペア:

[(1, 21279610), (2, 10639805), (5, 4255922), (10, 2127961), (11, 1934510), (22, 967255), (55, 386902), (110, 193451)]