28639908

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2333}}^1$

素因数の和:2385

約数の個数: 72

約数和(自身を含む): 81559296

約数和(自身を除く): 52919388

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 31, 33, 36, 44, 62, 66, 93, 99, 124, 132, 186, 198, 279, 341, 372, 396, 558, 682, 1023, 1116, 1364, 2046, 2333, 3069, 4092, 4666, 6138, 6999, 9332, 12276, 13998, 20997, 25663, 27996, 41994, 51326, 72323, 76989, 83988, 102652, 144646, 153978, 216969, 230967, 289292, 307956, 433938, 461934, 650907, 795553, 867876, 923868, 1301814, 1591106, 2386659, 2603628, 3182212, 4773318, 7159977, 9546636, 14319954, 28639908]

約数ペア:

[(1, 28639908), (2, 14319954), (3, 9546636), (4, 7159977), (6, 4773318), (9, 3182212), (11, 2603628), (12, 2386659), (18, 1591106), (22, 1301814), (31, 923868), (33, 867876), (36, 795553), (44, 650907), (62, 461934), (66, 433938), (93, 307956), (99, 289292), (124, 230967), (132, 216969), (186, 153978), (198, 144646), (279, 102652), (341, 83988), (372, 76989), (396, 72323), (558, 51326), (682, 41994), (1023, 27996), (1116, 25663), (1364, 20997), (2046, 13998), (2333, 12276), (3069, 9332), (4092, 6999), (4666, 6138)]