20213856572

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71287}}^1$

素因数の和:71371

約数の個数: 96

約数和(自身を含む): 46947425280

約数和(自身を除く): 26733568708

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 41, 52, 76, 82, 91, 133, 164, 182, 247, 266, 287, 364, 494, 532, 533, 574, 779, 988, 1066, 1148, 1558, 1729, 2132, 3116, 3458, 3731, 5453, 6916, 7462, 10127, 10906, 14924, 20254, 21812, 40508, 70889, 71287, 141778, 142574, 283556, 285148, 499009, 926731, 998018, 1354453, 1853462, 1996036, 2708906, 2922767, 3706924, 5417812, 5845534, 6487117, 9481171, 11691068, 12974234, 17607889, 18962342, 20459369, 25948468, 35215778, 37924684, 37995971, 40918738, 55532573, 70431556, 75991942, 81837476, 111065146, 123255223, 151983884, 222130292, 246510446, 265971797, 388728011, 493020892, 531943594, 721923449, 777456022, 1063887188, 1443846898, 1554912044, 2887693796, 5053464143, 10106928286, 20213856572]

約数ペア:

[(1, 20213856572), (2, 10106928286), (4, 5053464143), (7, 2887693796), (13, 1554912044), (14, 1443846898), (19, 1063887188), (26, 777456022), (28, 721923449), (38, 531943594), (41, 493020892), (52, 388728011), (76, 265971797), (82, 246510446), (91, 222130292), (133, 151983884), (164, 123255223), (182, 111065146), (247, 81837476), (266, 75991942), (287, 70431556), (364, 55532573), (494, 40918738), (532, 37995971), (533, 37924684), (574, 35215778), (779, 25948468), (988, 20459369), (1066, 18962342), (1148, 17607889), (1558, 12974234), (1729, 11691068), (2132, 9481171), (3116, 6487117), (3458, 5845534), (3731, 5417812), (5453, 3706924), (6916, 2922767), (7462, 2708906), (10127, 1996036), (10906, 1853462), (14924, 1354453), (20254, 998018), (21812, 926731), (40508, 499009), (70889, 285148), (71287, 283556), (141778, 142574)]