8427279

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21121}}^1$

素因数の和:21150

約数の個数: 16

約数和(自身を含む): 13518080

約数和(自身を除く): 5090801

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 21121, 63363, 147847, 401299, 443541, 1203897, 2809093, 8427279]

約数ペア:

[(1, 8427279), (3, 2809093), (7, 1203897), (19, 443541), (21, 401299), (57, 147847), (133, 63363), (399, 21121)]