21094872008

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^2\times {\mathrm{1433}}^1$

素因数の和:1564

約数の個数: 144

約数和(自身を含む): 49810319820

約数和(自身を除く): 28715447812

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 47, 49, 56, 68, 94, 98, 119, 136, 188, 196, 238, 329, 376, 392, 476, 658, 799, 833, 952, 1316, 1433, 1598, 1666, 2209, 2303, 2632, 2866, 3196, 3332, 4418, 4606, 5593, 5732, 6392, 6664, 8836, 9212, 10031, 11186, 11464, 15463, 17672, 18424, 20062, 22372, 24361, 30926, 37553, 39151, 40124, 44744, 48722, 61852, 67351, 70217, 75106, 78302, 80248, 97444, 108241, 123704, 134702, 140434, 150212, 156604, 170527, 194888, 216482, 262871, 269404, 280868, 300424, 313208, 341054, 432964, 471457, 525742, 538808, 561736, 682108, 865928, 942914, 1051484, 1144967, 1193689, 1364216, 1840097, 1885828, 2102968, 2289934, 2387378, 3165497, 3300199, 3680194, 3771656, 4579868, 4774756, 6330994, 6600398, 7360388, 8014769, 9159736, 9549512, 12661988, 13200796, 14720776, 16029538, 22158479, 25323976, 26401592, 32059076, 44316958, 53813449, 56103383, 64118152, 88633916, 107626898, 112206766, 155109353, 177267832, 215253796, 224413532, 310218706, 376694143, 430507592, 448827064, 620437412, 753388286, 1240874824, 1506776572, 2636859001, 3013553144, 5273718002, 10547436004, 21094872008]

約数ペア:

[(1, 21094872008), (2, 10547436004), (4, 5273718002), (7, 3013553144), (8, 2636859001), (14, 1506776572), (17, 1240874824), (28, 753388286), (34, 620437412), (47, 448827064), (49, 430507592), (56, 376694143), (68, 310218706), (94, 224413532), (98, 215253796), (119, 177267832), (136, 155109353), (188, 112206766), (196, 107626898), (238, 88633916), (329, 64118152), (376, 56103383), (392, 53813449), (476, 44316958), (658, 32059076), (799, 26401592), (833, 25323976), (952, 22158479), (1316, 16029538), (1433, 14720776), (1598, 13200796), (1666, 12661988), (2209, 9549512), (2303, 9159736), (2632, 8014769), (2866, 7360388), (3196, 6600398), (3332, 6330994), (4418, 4774756), (4606, 4579868), (5593, 3771656), (5732, 3680194), (6392, 3300199), (6664, 3165497), (8836, 2387378), (9212, 2289934), (10031, 2102968), (11186, 1885828), (11464, 1840097), (15463, 1364216), (17672, 1193689), (18424, 1144967), (20062, 1051484), (22372, 942914), (24361, 865928), (30926, 682108), (37553, 561736), (39151, 538808), (40124, 525742), (44744, 471457), (48722, 432964), (61852, 341054), (67351, 313208), (70217, 300424), (75106, 280868), (78302, 269404), (80248, 262871), (97444, 216482), (108241, 194888), (123704, 170527), (134702, 156604), (140434, 150212)]