16933959

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 31299840

約数和(自身を除く): 14365881

約数列:

[1, 3, 7, 9, 19, 21, 43, 47, 49, 57, 63, 129, 133, 141, 147, 171, 301, 329, 387, 399, 423, 441, 817, 893, 903, 931, 987, 1197, 2021, 2107, 2303, 2451, 2679, 2709, 2793, 2961, 5719, 6063, 6251, 6321, 6909, 7353, 8037, 8379, 14147, 17157, 18189, 18753, 18963, 20727, 38399, 40033, 42441, 43757, 51471, 56259, 99029, 115197, 120099, 127323, 131271, 268793, 297087, 345591, 360297, 393813, 806379, 891261, 1881551, 2419137, 5644653, 16933959]

約数ペア:

[(1, 16933959), (3, 5644653), (7, 2419137), (9, 1881551), (19, 891261), (21, 806379), (43, 393813), (47, 360297), (49, 345591), (57, 297087), (63, 268793), (129, 131271), (133, 127323), (141, 120099), (147, 115197), (171, 99029), (301, 56259), (329, 51471), (387, 43757), (399, 42441), (423, 40033), (441, 38399), (817, 20727), (893, 18963), (903, 18753), (931, 18189), (987, 17157), (1197, 14147), (2021, 8379), (2107, 8037), (2303, 7353), (2451, 6909), (2679, 6321), (2709, 6251), (2793, 6063), (2961, 5719)]