21280906878

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{761}}^1\times {\mathrm{8647}}^1$

素因数の和:9438

約数の個数: 96

約数和(自身を含む): 54088881408

約数和(自身を除く): 32807974530

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 147, 154, 231, 294, 462, 539, 761, 1078, 1522, 1617, 2283, 3234, 4566, 5327, 8371, 8647, 10654, 15981, 16742, 17294, 25113, 25941, 31962, 37289, 50226, 51882, 58597, 60529, 74578, 95117, 111867, 117194, 121058, 175791, 181587, 190234, 223734, 285351, 351582, 363174, 410179, 423703, 570702, 665819, 820358, 847406, 1230537, 1271109, 1331638, 1997457, 2461074, 2542218, 3994914, 4660733, 6580367, 9321466, 13160734, 13982199, 19741101, 27964398, 39482202, 46062569, 72384037, 92125138, 138187707, 144768074, 217152111, 276375414, 322437983, 434304222, 506688259, 644875966, 967313949, 1013376518, 1520064777, 1934627898, 3040129554, 3546817813, 7093635626, 10640453439, 21280906878]

約数ペア:

[(1, 21280906878), (2, 10640453439), (3, 7093635626), (6, 3546817813), (7, 3040129554), (11, 1934627898), (14, 1520064777), (21, 1013376518), (22, 967313949), (33, 644875966), (42, 506688259), (49, 434304222), (66, 322437983), (77, 276375414), (98, 217152111), (147, 144768074), (154, 138187707), (231, 92125138), (294, 72384037), (462, 46062569), (539, 39482202), (761, 27964398), (1078, 19741101), (1522, 13982199), (1617, 13160734), (2283, 9321466), (3234, 6580367), (4566, 4660733), (5327, 3994914), (8371, 2542218), (8647, 2461074), (10654, 1997457), (15981, 1331638), (16742, 1271109), (17294, 1230537), (25113, 847406), (25941, 820358), (31962, 665819), (37289, 570702), (50226, 423703), (51882, 410179), (58597, 363174), (60529, 351582), (74578, 285351), (95117, 223734), (111867, 190234), (117194, 181587), (121058, 175791)]