21000676788

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1117}}^1\times {\mathrm{1913}}^1$

素因数の和:3063

約数の個数: 192

約数和(自身を含む): 67105758720

約数和(自身を除く): 46105081932

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 52, 54, 63, 78, 84, 91, 108, 117, 126, 156, 182, 189, 234, 252, 273, 351, 364, 378, 468, 546, 702, 756, 819, 1092, 1117, 1404, 1638, 1913, 2234, 2457, 3276, 3351, 3826, 4468, 4914, 5739, 6702, 7652, 7819, 9828, 10053, 11478, 13391, 13404, 14521, 15638, 17217, 20106, 22956, 23457, 24869, 26782, 29042, 30159, 31276, 34434, 40173, 40212, 43563, 46914, 49738, 51651, 53564, 58084, 60318, 68868, 70371, 74607, 80346, 87126, 93828, 99476, 101647, 103302, 120519, 120636, 130689, 140742, 149214, 160692, 174083, 174252, 203294, 206604, 211113, 223821, 241038, 261378, 281484, 298428, 304941, 348166, 361557, 392067, 406588, 422226, 447642, 482076, 522249, 522756, 609882, 671463, 696332, 723114, 784134, 844452, 895284, 914823, 1044498, 1219764, 1342926, 1446228, 1566747, 1568268, 1829646, 2088996, 2136821, 2685852, 2744469, 3133494, 3659292, 4273642, 4700241, 5488938, 6266988, 6410463, 8547284, 9400482, 10977876, 12820926, 14957747, 18800964, 19231389, 25641852, 27778673, 29915494, 38462778, 44873241, 55557346, 57694167, 59830988, 76925556, 83336019, 89746482, 111114692, 115388334, 134619723, 166672038, 179492964, 194450711, 230776668, 250008057, 269239446, 333344076, 388901422, 403859169, 500016114, 538478892, 583352133, 750024171, 777802844, 807718338, 1000032228, 1166704266, 1500048342, 1615436676, 1750056399, 2333408532, 3000096684, 3500112798, 5250169197, 7000225596, 10500338394, 21000676788]

約数ペア:

[(1, 21000676788), (2, 10500338394), (3, 7000225596), (4, 5250169197), (6, 3500112798), (7, 3000096684), (9, 2333408532), (12, 1750056399), (13, 1615436676), (14, 1500048342), (18, 1166704266), (21, 1000032228), (26, 807718338), (27, 777802844), (28, 750024171), (36, 583352133), (39, 538478892), (42, 500016114), (52, 403859169), (54, 388901422), (63, 333344076), (78, 269239446), (84, 250008057), (91, 230776668), (108, 194450711), (117, 179492964), (126, 166672038), (156, 134619723), (182, 115388334), (189, 111114692), (234, 89746482), (252, 83336019), (273, 76925556), (351, 59830988), (364, 57694167), (378, 55557346), (468, 44873241), (546, 38462778), (702, 29915494), (756, 27778673), (819, 25641852), (1092, 19231389), (1117, 18800964), (1404, 14957747), (1638, 12820926), (1913, 10977876), (2234, 9400482), (2457, 8547284), (3276, 6410463), (3351, 6266988), (3826, 5488938), (4468, 4700241), (4914, 4273642), (5739, 3659292), (6702, 3133494), (7652, 2744469), (7819, 2685852), (9828, 2136821), (10053, 2088996), (11478, 1829646), (13391, 1568268), (13404, 1566747), (14521, 1446228), (15638, 1342926), (17217, 1219764), (20106, 1044498), (22956, 914823), (23457, 895284), (24869, 844452), (26782, 784134), (29042, 723114), (30159, 696332), (31276, 671463), (34434, 609882), (40173, 522756), (40212, 522249), (43563, 482076), (46914, 447642), (49738, 422226), (51651, 406588), (53564, 392067), (58084, 361557), (60318, 348166), (68868, 304941), (70371, 298428), (74607, 281484), (80346, 261378), (87126, 241038), (93828, 223821), (99476, 211113), (101647, 206604), (103302, 203294), (120519, 174252), (120636, 174083), (130689, 160692), (140742, 149214)]