20957328

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1223}}^1$

素因数の和:1261

約数の個数: 120

約数和(自身を含む): 71031168

約数和(自身を除く): 50073840

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 102, 112, 119, 126, 136, 144, 153, 168, 204, 238, 252, 272, 306, 336, 357, 408, 476, 504, 612, 714, 816, 952, 1008, 1071, 1223, 1224, 1428, 1904, 2142, 2446, 2448, 2856, 3669, 4284, 4892, 5712, 7338, 8561, 8568, 9784, 11007, 14676, 17122, 17136, 19568, 20791, 22014, 25683, 29352, 34244, 41582, 44028, 51366, 58704, 62373, 68488, 77049, 83164, 88056, 102732, 124746, 136976, 145537, 154098, 166328, 176112, 187119, 205464, 249492, 291074, 308196, 332656, 374238, 410928, 436611, 498984, 582148, 616392, 748476, 873222, 997968, 1164296, 1232784, 1309833, 1496952, 1746444, 2328592, 2619666, 2993904, 3492888, 5239332, 6985776, 10478664, 20957328]

約数ペア:

[(1, 20957328), (2, 10478664), (3, 6985776), (4, 5239332), (6, 3492888), (7, 2993904), (8, 2619666), (9, 2328592), (12, 1746444), (14, 1496952), (16, 1309833), (17, 1232784), (18, 1164296), (21, 997968), (24, 873222), (28, 748476), (34, 616392), (36, 582148), (42, 498984), (48, 436611), (51, 410928), (56, 374238), (63, 332656), (68, 308196), (72, 291074), (84, 249492), (102, 205464), (112, 187119), (119, 176112), (126, 166328), (136, 154098), (144, 145537), (153, 136976), (168, 124746), (204, 102732), (238, 88056), (252, 83164), (272, 77049), (306, 68488), (336, 62373), (357, 58704), (408, 51366), (476, 44028), (504, 41582), (612, 34244), (714, 29352), (816, 25683), (952, 22014), (1008, 20791), (1071, 19568), (1223, 17136), (1224, 17122), (1428, 14676), (1904, 11007), (2142, 9784), (2446, 8568), (2448, 8561), (2856, 7338), (3669, 5712), (4284, 4892)]