28938393

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 48522240

約数和(自身を除く): 19583847

約数列:

[1, 3, 9, 11, 23, 33, 69, 71, 99, 179, 207, 213, 253, 537, 639, 759, 781, 1611, 1633, 1969, 2277, 2343, 4117, 4899, 5907, 7029, 12351, 12709, 14697, 17721, 17963, 37053, 38127, 45287, 53889, 114381, 135861, 139799, 161667, 292307, 407583, 419397, 876921, 1258191, 2630763, 3215377, 9646131, 28938393]

約数ペア:

[(1, 28938393), (3, 9646131), (9, 3215377), (11, 2630763), (23, 1258191), (33, 876921), (69, 419397), (71, 407583), (99, 292307), (179, 161667), (207, 139799), (213, 135861), (253, 114381), (537, 53889), (639, 45287), (759, 38127), (781, 37053), (1611, 17963), (1633, 17721), (1969, 14697), (2277, 12709), (2343, 12351), (4117, 7029), (4899, 5907)]