6640137

素因数分解:

$3^4\times 7^3\times {\mathrm{239}}^1$

素因数の和:272

約数の個数: 40

約数和(自身を含む): 11616000

約数和(自身を除く): 4975863

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 239, 343, 441, 567, 717, 1029, 1323, 1673, 2151, 3087, 3969, 5019, 6453, 9261, 11711, 15057, 19359, 27783, 35133, 45171, 81977, 105399, 135513, 245931, 316197, 737793, 948591, 2213379, 6640137]

約数ペア:

[(1, 6640137), (3, 2213379), (7, 948591), (9, 737793), (21, 316197), (27, 245931), (49, 135513), (63, 105399), (81, 81977), (147, 45171), (189, 35133), (239, 27783), (343, 19359), (441, 15057), (567, 11711), (717, 9261), (1029, 6453), (1323, 5019), (1673, 3969), (2151, 3087)]