212212917

素因数分解:

$3^2\times 7^1\times {\mathrm{709}}^1\times {\mathrm{4751}}^1$

素因数の和:5473

約数の個数: 24

約数和(自身を含む): 350887680

約数和(自身を除く): 138674763

約数列:

[1, 3, 7, 9, 21, 63, 709, 2127, 4751, 4963, 6381, 14253, 14889, 33257, 42759, 44667, 99771, 299313, 3368459, 10105377, 23579213, 30316131, 70737639, 212212917]

約数ペア:

[(1, 212212917), (3, 70737639), (7, 30316131), (9, 23579213), (21, 10105377), (63, 3368459), (709, 299313), (2127, 99771), (4751, 44667), (4963, 42759), (6381, 33257), (14253, 14889)]