21000604365

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1\times {\mathrm{859}}^1$

素因数の和:1008

約数の個数: 144

約数和(自身を含む): 41546668800

約数和(自身を除く): 20546064435

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 79, 115, 117, 195, 207, 237, 299, 345, 395, 529, 585, 711, 859, 897, 1027, 1035, 1185, 1495, 1587, 1817, 2577, 2645, 2691, 3081, 3555, 4295, 4485, 4761, 5135, 5451, 6877, 7731, 7935, 9085, 9243, 11167, 12885, 13455, 15405, 16353, 19757, 20631, 23621, 23805, 27255, 33501, 34385, 38655, 41791, 46215, 55835, 59271, 61893, 67861, 70863, 81765, 98785, 100503, 103155, 118105, 125373, 167505, 177813, 203583, 208955, 212589, 256841, 296355, 309465, 339305, 354315, 376119, 454411, 502515, 543283, 610749, 626865, 770523, 882193, 889065, 1017915, 1062945, 1284205, 1363233, 1560803, 1629849, 1880595, 2272055, 2311569, 2646579, 2716415, 3053745, 3852615, 4089699, 4410965, 4682409, 4889547, 5907343, 6816165, 7804015, 7939737, 8149245, 11557845, 13232895, 14047227, 17722029, 20290439, 20448495, 23412045, 24447735, 29536715, 35898469, 39698685, 53166087, 60871317, 70236135, 88610145, 101452195, 107695407, 179492345, 182613951, 265830435, 304356585, 323086221, 466680097, 538477035, 913069755, 1400040291, 1615431105, 2333400485, 4200120873, 7000201455, 21000604365]

約数ペア:

[(1, 21000604365), (3, 7000201455), (5, 4200120873), (9, 2333400485), (13, 1615431105), (15, 1400040291), (23, 913069755), (39, 538477035), (45, 466680097), (65, 323086221), (69, 304356585), (79, 265830435), (115, 182613951), (117, 179492345), (195, 107695407), (207, 101452195), (237, 88610145), (299, 70236135), (345, 60871317), (395, 53166087), (529, 39698685), (585, 35898469), (711, 29536715), (859, 24447735), (897, 23412045), (1027, 20448495), (1035, 20290439), (1185, 17722029), (1495, 14047227), (1587, 13232895), (1817, 11557845), (2577, 8149245), (2645, 7939737), (2691, 7804015), (3081, 6816165), (3555, 5907343), (4295, 4889547), (4485, 4682409), (4761, 4410965), (5135, 4089699), (5451, 3852615), (6877, 3053745), (7731, 2716415), (7935, 2646579), (9085, 2311569), (9243, 2272055), (11167, 1880595), (12885, 1629849), (13455, 1560803), (15405, 1363233), (16353, 1284205), (19757, 1062945), (20631, 1017915), (23621, 889065), (23805, 882193), (27255, 770523), (33501, 626865), (34385, 610749), (38655, 543283), (41791, 502515), (46215, 454411), (55835, 376119), (59271, 354315), (61893, 339305), (67861, 309465), (70863, 296355), (81765, 256841), (98785, 212589), (100503, 208955), (103155, 203583), (118105, 177813), (125373, 167505)]