28740999

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:125

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 21025401

約数列:

[1, 3, 7, 17, 21, 31, 49, 51, 53, 93, 119, 147, 159, 217, 343, 357, 371, 527, 651, 833, 901, 1029, 1113, 1519, 1581, 1643, 2499, 2597, 2703, 3689, 4557, 4929, 5831, 6307, 7791, 10633, 11067, 11501, 17493, 18179, 18921, 25823, 27931, 31899, 34503, 44149, 54537, 77469, 80507, 83793, 132447, 180761, 195517, 241521, 309043, 542283, 563549, 586551, 927129, 1368619, 1690647, 4105857, 9580333, 28740999]

約数ペア:

[(1, 28740999), (3, 9580333), (7, 4105857), (17, 1690647), (21, 1368619), (31, 927129), (49, 586551), (51, 563549), (53, 542283), (93, 309043), (119, 241521), (147, 195517), (159, 180761), (217, 132447), (343, 83793), (357, 80507), (371, 77469), (527, 54537), (651, 44149), (833, 34503), (901, 31899), (1029, 27931), (1113, 25823), (1519, 18921), (1581, 18179), (1643, 17493), (2499, 11501), (2597, 11067), (2703, 10633), (3689, 7791), (4557, 6307), (4929, 5831)]