279728001

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2719}}^1$

素因数の和:2826

約数の個数: 48

約数和(自身を含む): 488816640

約数和(自身を除く): 209088639

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 71, 161, 207, 213, 483, 497, 639, 1449, 1491, 1633, 2719, 4473, 4899, 8157, 11431, 14697, 19033, 24471, 34293, 57099, 62537, 102879, 171297, 187611, 193049, 437759, 562833, 579147, 1313277, 1351343, 1737441, 3939831, 4054029, 4440127, 12162087, 13320381, 31080889, 39961143, 93242667, 279728001]

約数ペア:

[(1, 279728001), (3, 93242667), (7, 39961143), (9, 31080889), (21, 13320381), (23, 12162087), (63, 4440127), (69, 4054029), (71, 3939831), (161, 1737441), (207, 1351343), (213, 1313277), (483, 579147), (497, 562833), (639, 437759), (1449, 193049), (1491, 187611), (1633, 171297), (2719, 102879), (4473, 62537), (4899, 57099), (8157, 34293), (11431, 24471), (14697, 19033)]