21980020878

素因数分解:

$2^1\times 3^2\times {\mathrm{1221112271}}^1$

素因数の和:1221112279

約数の個数: 12

約数和(自身を含む): 47623378608

約数和(自身を除く): 25643357730

約数列:

[1, 2, 3, 6, 9, 18, 1221112271, 2442224542, 3663336813, 7326673626, 10990010439, 21980020878]

約数ペア:

[(1, 21980020878), (2, 10990010439), (3, 7326673626), (6, 3663336813), (9, 2442224542), (18, 1221112271)]