397502721

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 160

約数和(自身を含む): 822970368

約数和(自身を除く): 425467647

約数列:

[1, 3, 7, 9, 11, 17, 21, 23, 27, 33, 51, 63, 69, 77, 81, 99, 119, 153, 161, 163, 187, 189, 207, 231, 253, 297, 357, 391, 459, 483, 489, 561, 567, 621, 693, 759, 891, 1071, 1141, 1173, 1309, 1377, 1449, 1467, 1683, 1771, 1793, 1863, 2079, 2277, 2737, 2771, 3213, 3423, 3519, 3749, 3927, 4301, 4347, 4401, 5049, 5313, 5379, 6237, 6831, 8211, 8313, 9639, 10269, 10557, 11247, 11781, 12551, 12903, 13041, 13203, 15147, 15939, 16137, 19397, 20493, 24633, 24939, 26243, 30107, 30481, 30807, 31671, 33741, 35343, 37653, 38709, 41239, 47817, 48411, 58191, 63733, 73899, 74817, 78729, 90321, 91443, 92421, 101223, 106029, 112959, 116127, 123717, 143451, 145233, 174573, 191199, 213367, 221697, 224451, 236187, 270963, 274329, 288673, 303669, 338877, 348381, 371151, 446131, 523719, 573597, 640101, 701063, 708561, 812889, 822987, 866019, 1016631, 1113453, 1338393, 1571157, 1720791, 1920303, 2103189, 2125683, 2438667, 2468961, 2598057, 3340359, 4015179, 4907441, 5162373, 5760909, 6309567, 7794171, 12045537, 14722323, 17282727, 18928701, 23382513, 36136611, 44166969, 56786103, 132500907, 397502721]

約数ペア:

[(1, 397502721), (3, 132500907), (7, 56786103), (9, 44166969), (11, 36136611), (17, 23382513), (21, 18928701), (23, 17282727), (27, 14722323), (33, 12045537), (51, 7794171), (63, 6309567), (69, 5760909), (77, 5162373), (81, 4907441), (99, 4015179), (119, 3340359), (153, 2598057), (161, 2468961), (163, 2438667), (187, 2125683), (189, 2103189), (207, 1920303), (231, 1720791), (253, 1571157), (297, 1338393), (357, 1113453), (391, 1016631), (459, 866019), (483, 822987), (489, 812889), (561, 708561), (567, 701063), (621, 640101), (693, 573597), (759, 523719), (891, 446131), (1071, 371151), (1141, 348381), (1173, 338877), (1309, 303669), (1377, 288673), (1449, 274329), (1467, 270963), (1683, 236187), (1771, 224451), (1793, 221697), (1863, 213367), (2079, 191199), (2277, 174573), (2737, 145233), (2771, 143451), (3213, 123717), (3423, 116127), (3519, 112959), (3749, 106029), (3927, 101223), (4301, 92421), (4347, 91443), (4401, 90321), (5049, 78729), (5313, 74817), (5379, 73899), (6237, 63733), (6831, 58191), (8211, 48411), (8313, 47817), (9639, 41239), (10269, 38709), (10557, 37653), (11247, 35343), (11781, 33741), (12551, 31671), (12903, 30807), (13041, 30481), (13203, 30107), (15147, 26243), (15939, 24939), (16137, 24633), (19397, 20493)]