20854512

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1217}}^1$

素因数の和:1255

約数の個数: 120

約数和(自身を含む): 70682976

約数和(自身を除く): 49828464

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 102, 112, 119, 126, 136, 144, 153, 168, 204, 238, 252, 272, 306, 336, 357, 408, 476, 504, 612, 714, 816, 952, 1008, 1071, 1217, 1224, 1428, 1904, 2142, 2434, 2448, 2856, 3651, 4284, 4868, 5712, 7302, 8519, 8568, 9736, 10953, 14604, 17038, 17136, 19472, 20689, 21906, 25557, 29208, 34076, 41378, 43812, 51114, 58416, 62067, 68152, 76671, 82756, 87624, 102228, 124134, 136304, 144823, 153342, 165512, 175248, 186201, 204456, 248268, 289646, 306684, 331024, 372402, 408912, 434469, 496536, 579292, 613368, 744804, 868938, 993072, 1158584, 1226736, 1303407, 1489608, 1737876, 2317168, 2606814, 2979216, 3475752, 5213628, 6951504, 10427256, 20854512]

約数ペア:

[(1, 20854512), (2, 10427256), (3, 6951504), (4, 5213628), (6, 3475752), (7, 2979216), (8, 2606814), (9, 2317168), (12, 1737876), (14, 1489608), (16, 1303407), (17, 1226736), (18, 1158584), (21, 993072), (24, 868938), (28, 744804), (34, 613368), (36, 579292), (42, 496536), (48, 434469), (51, 408912), (56, 372402), (63, 331024), (68, 306684), (72, 289646), (84, 248268), (102, 204456), (112, 186201), (119, 175248), (126, 165512), (136, 153342), (144, 144823), (153, 136304), (168, 124134), (204, 102228), (238, 87624), (252, 82756), (272, 76671), (306, 68152), (336, 62067), (357, 58416), (408, 51114), (476, 43812), (504, 41378), (612, 34076), (714, 29208), (816, 25557), (952, 21906), (1008, 20689), (1071, 19472), (1217, 17136), (1224, 17038), (1428, 14604), (1904, 10953), (2142, 9736), (2434, 8568), (2448, 8519), (2856, 7302), (3651, 5712), (4284, 4868)]