28272717

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 47915712

約数和(自身を除く): 19642995

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 107, 153, 157, 187, 321, 471, 561, 963, 1177, 1413, 1683, 1727, 1819, 2669, 3531, 5181, 5457, 8007, 10593, 15543, 16371, 16799, 20009, 24021, 29359, 50397, 60027, 88077, 151191, 180081, 184789, 264231, 285583, 554367, 856749, 1663101, 2570247, 3141413, 9424239, 28272717]

約数ペア:

[(1, 28272717), (3, 9424239), (9, 3141413), (11, 2570247), (17, 1663101), (33, 856749), (51, 554367), (99, 285583), (107, 264231), (153, 184789), (157, 180081), (187, 151191), (321, 88077), (471, 60027), (561, 50397), (963, 29359), (1177, 24021), (1413, 20009), (1683, 16799), (1727, 16371), (1819, 15543), (2669, 10593), (3531, 8007), (5181, 5457)]