21176084

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2857}}^1$

素因数の和:2987

約数の個数: 24

約数和(自身を含む): 39611880

約数和(自身を除く): 18435796

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 2857, 3706, 5714, 7412, 11428, 48569, 97138, 194276, 311413, 622826, 1245652, 5294021, 10588042, 21176084]

約数ペア:

[(1, 21176084), (2, 10588042), (4, 5294021), (17, 1245652), (34, 622826), (68, 311413), (109, 194276), (218, 97138), (436, 48569), (1853, 11428), (2857, 7412), (3706, 5714)]