21384503

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{419}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 25643520

約数和(自身を除く): 4259017

約数列:

[1, 7, 23, 161, 317, 419, 2219, 2933, 7291, 9637, 51037, 67459, 132823, 929761, 3054929, 21384503]

約数ペア:

[(1, 21384503), (7, 3054929), (23, 929761), (161, 132823), (317, 67459), (419, 51037), (2219, 9637), (2933, 7291)]