19221688

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 37445760

約数和(自身を除く): 18224072

約数列:

[1, 2, 4, 8, 43, 71, 86, 142, 172, 284, 344, 568, 787, 1574, 3053, 3148, 6106, 6296, 12212, 24424, 33841, 55877, 67682, 111754, 135364, 223508, 270728, 447016, 2402711, 4805422, 9610844, 19221688]

約数ペア:

[(1, 19221688), (2, 9610844), (4, 4805422), (8, 2402711), (43, 447016), (71, 270728), (86, 223508), (142, 135364), (172, 111754), (284, 67682), (344, 55877), (568, 33841), (787, 24424), (1574, 12212), (3053, 6296), (3148, 6106)]