81740379

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{11831}}^1$

素因数の和:11895

約数の個数: 24

約数和(自身を含む): 129489408

約数和(自身を除く): 47749029

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 6909, 11831, 35493, 82817, 248451, 556057, 579719, 1668171, 1739157, 3892399, 11677197, 27246793, 81740379]

約数ペア:

[(1, 81740379), (3, 27246793), (7, 11677197), (21, 3892399), (47, 1739157), (49, 1668171), (141, 579719), (147, 556057), (329, 248451), (987, 82817), (2303, 35493), (6909, 11831)]