21202986896

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{22031}}^1$

素因数の和:22720

約数の個数: 80

約数和(自身を含む): 50639758848

約数和(自身を除く): 29436771952

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 661, 728, 1322, 1456, 2644, 4627, 5288, 8593, 9254, 10576, 17186, 18508, 22031, 34372, 37016, 44062, 60151, 68744, 74032, 88124, 120302, 137488, 154217, 176248, 240604, 286403, 308434, 352496, 481208, 572806, 616868, 962416, 1145612, 1233736, 2004821, 2291224, 2467472, 4009642, 4582448, 8019284, 14562491, 16038568, 29124982, 32077136, 58249964, 101937437, 116499928, 189312383, 203874874, 232999856, 378624766, 407749748, 757249532, 815499496, 1325186681, 1514499064, 1630998992, 2650373362, 3028998128, 5300746724, 10601493448, 21202986896]

約数ペア:

[(1, 21202986896), (2, 10601493448), (4, 5300746724), (7, 3028998128), (8, 2650373362), (13, 1630998992), (14, 1514499064), (16, 1325186681), (26, 815499496), (28, 757249532), (52, 407749748), (56, 378624766), (91, 232999856), (104, 203874874), (112, 189312383), (182, 116499928), (208, 101937437), (364, 58249964), (661, 32077136), (728, 29124982), (1322, 16038568), (1456, 14562491), (2644, 8019284), (4627, 4582448), (5288, 4009642), (8593, 2467472), (9254, 2291224), (10576, 2004821), (17186, 1233736), (18508, 1145612), (22031, 962416), (34372, 616868), (37016, 572806), (44062, 481208), (60151, 352496), (68744, 308434), (74032, 286403), (88124, 240604), (120302, 176248), (137488, 154217)]