21754612

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{3557}}^1$

素因数の和:3711

約数の個数: 24

約数和(自身を含む): 41842080

約数和(自身を除く): 20087468

約数列:

[1, 2, 4, 11, 22, 44, 139, 278, 556, 1529, 3058, 3557, 6116, 7114, 14228, 39127, 78254, 156508, 494423, 988846, 1977692, 5438653, 10877306, 21754612]

約数ペア:

[(1, 21754612), (2, 10877306), (4, 5438653), (11, 1977692), (22, 988846), (44, 494423), (139, 156508), (278, 78254), (556, 39127), (1529, 14228), (3058, 7114), (3557, 6116)]