258971517

素因数分解:

$3^2\times 7^3\times {\mathrm{83891}}^1$

素因数の和:83918

約数の個数: 24

約数和(自身を含む): 436238400

約数和(自身を除く): 177266883

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 83891, 251673, 587237, 755019, 1761711, 4110659, 5285133, 12331977, 28774613, 36995931, 86323839, 258971517]

約数ペア:

[(1, 258971517), (3, 86323839), (7, 36995931), (9, 28774613), (21, 12331977), (49, 5285133), (63, 4110659), (147, 1761711), (343, 755019), (441, 587237), (1029, 251673), (3087, 83891)]