20719468

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67271}}^1$

素因数の和:67293

約数の個数: 24

約数和(自身を含む): 45206784

約数和(自身を除く): 24487316

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67271, 134542, 269084, 470897, 739981, 941794, 1479962, 1883588, 2959924, 5179867, 10359734, 20719468]

約数ペア:

[(1, 20719468), (2, 10359734), (4, 5179867), (7, 2959924), (11, 1883588), (14, 1479962), (22, 941794), (28, 739981), (44, 470897), (77, 269084), (154, 134542), (308, 67271)]