21000880908

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{4001}}^1$

素因数の和:4205

約数の個数: 192

約数和(自身を含む): 63898813440

約数和(自身を除く): 42897932532

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 53, 54, 63, 84, 106, 108, 126, 131, 159, 189, 212, 252, 262, 318, 371, 378, 393, 477, 524, 636, 742, 756, 786, 917, 954, 1113, 1179, 1431, 1484, 1572, 1834, 1908, 2226, 2358, 2751, 2862, 3339, 3537, 3668, 4001, 4452, 4716, 5502, 5724, 6678, 6943, 7074, 8002, 8253, 10017, 11004, 12003, 13356, 13886, 14148, 16004, 16506, 20034, 20829, 24006, 24759, 27772, 28007, 33012, 36009, 40068, 41658, 48012, 48601, 49518, 56014, 62487, 72018, 83316, 84021, 97202, 99036, 108027, 112028, 124974, 144036, 145803, 168042, 187461, 194404, 212053, 216054, 249948, 252063, 291606, 336084, 374922, 424106, 432108, 437409, 504126, 524131, 583212, 636159, 749844, 756189, 848212, 874818, 1008252, 1048262, 1272318, 1312227, 1484371, 1512378, 1572393, 1749636, 1908477, 2096524, 2544636, 2624454, 2968742, 3024756, 3144786, 3668917, 3816954, 4453113, 4717179, 5248908, 5725431, 5937484, 6289572, 7337834, 7633908, 8906226, 9434358, 11006751, 11450862, 13359339, 14151537, 14675668, 17812452, 18868716, 22013502, 22901724, 26718678, 27778943, 28303074, 33020253, 40078017, 44027004, 53437356, 55557886, 56606148, 66040506, 80156034, 83336829, 99060759, 111115772, 132081012, 160312068, 166673658, 194452601, 198121518, 250010487, 333347316, 388905202, 396243036, 500020974, 583357803, 750031461, 777810404, 1000041948, 1166715606, 1500062922, 1750073409, 2333431212, 3000125844, 3500146818, 5250220227, 7000293636, 10500440454, 21000880908]

約数ペア:

[(1, 21000880908), (2, 10500440454), (3, 7000293636), (4, 5250220227), (6, 3500146818), (7, 3000125844), (9, 2333431212), (12, 1750073409), (14, 1500062922), (18, 1166715606), (21, 1000041948), (27, 777810404), (28, 750031461), (36, 583357803), (42, 500020974), (53, 396243036), (54, 388905202), (63, 333347316), (84, 250010487), (106, 198121518), (108, 194452601), (126, 166673658), (131, 160312068), (159, 132081012), (189, 111115772), (212, 99060759), (252, 83336829), (262, 80156034), (318, 66040506), (371, 56606148), (378, 55557886), (393, 53437356), (477, 44027004), (524, 40078017), (636, 33020253), (742, 28303074), (756, 27778943), (786, 26718678), (917, 22901724), (954, 22013502), (1113, 18868716), (1179, 17812452), (1431, 14675668), (1484, 14151537), (1572, 13359339), (1834, 11450862), (1908, 11006751), (2226, 9434358), (2358, 8906226), (2751, 7633908), (2862, 7337834), (3339, 6289572), (3537, 5937484), (3668, 5725431), (4001, 5248908), (4452, 4717179), (4716, 4453113), (5502, 3816954), (5724, 3668917), (6678, 3144786), (6943, 3024756), (7074, 2968742), (8002, 2624454), (8253, 2544636), (10017, 2096524), (11004, 1908477), (12003, 1749636), (13356, 1572393), (13886, 1512378), (14148, 1484371), (16004, 1312227), (16506, 1272318), (20034, 1048262), (20829, 1008252), (24006, 874818), (24759, 848212), (27772, 756189), (28007, 749844), (33012, 636159), (36009, 583212), (40068, 524131), (41658, 504126), (48012, 437409), (48601, 432108), (49518, 424106), (56014, 374922), (62487, 336084), (72018, 291606), (83316, 252063), (84021, 249948), (97202, 216054), (99036, 212053), (108027, 194404), (112028, 187461), (124974, 168042), (144036, 145803)]