8191281

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{541}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 12851904

約数和(自身を除く): 4660623

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 541, 721, 1623, 2163, 3787, 5047, 11361, 15141, 26509, 55723, 79527, 167169, 390061, 1170183, 2730427, 8191281]

約数ペア:

[(1, 8191281), (3, 2730427), (7, 1170183), (21, 390061), (49, 167169), (103, 79527), (147, 55723), (309, 26509), (541, 15141), (721, 11361), (1623, 5047), (2163, 3787)]