20690366949

素因数分解:

$3^5\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{2557}}^1$

素因数の和:2717

約数の個数: 96

約数和(自身を含む): 36469794816

約数和(自身を除く): 15779427867

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 71, 81, 189, 201, 213, 243, 469, 497, 567, 603, 639, 1407, 1491, 1701, 1809, 1917, 2557, 4221, 4473, 4757, 5427, 5751, 7671, 12663, 13419, 14271, 16281, 17253, 17899, 23013, 33299, 37989, 40257, 42813, 53697, 69039, 99897, 113967, 120771, 128439, 161091, 171319, 181547, 207117, 299691, 385317, 483273, 513957, 544641, 621351, 899073, 1155951, 1199233, 1270829, 1449819, 1541871, 1633923, 2697219, 3597699, 3812487, 4349457, 4625613, 4901769, 8091657, 10793097, 11437461, 12163649, 13876839, 14705307, 32379291, 34312383, 36490947, 41630517, 44115921, 85145543, 97137873, 102937149, 109472841, 255436629, 291413619, 308811447, 328418523, 766309887, 985255569, 2298929661, 2955766707, 6896788983, 20690366949]

約数ペア:

[(1, 20690366949), (3, 6896788983), (7, 2955766707), (9, 2298929661), (21, 985255569), (27, 766309887), (63, 328418523), (67, 308811447), (71, 291413619), (81, 255436629), (189, 109472841), (201, 102937149), (213, 97137873), (243, 85145543), (469, 44115921), (497, 41630517), (567, 36490947), (603, 34312383), (639, 32379291), (1407, 14705307), (1491, 13876839), (1701, 12163649), (1809, 11437461), (1917, 10793097), (2557, 8091657), (4221, 4901769), (4473, 4625613), (4757, 4349457), (5427, 3812487), (5751, 3597699), (7671, 2697219), (12663, 1633923), (13419, 1541871), (14271, 1449819), (16281, 1270829), (17253, 1199233), (17899, 1155951), (23013, 899073), (33299, 621351), (37989, 544641), (40257, 513957), (42813, 483273), (53697, 385317), (69039, 299691), (99897, 207117), (113967, 181547), (120771, 171319), (128439, 161091)]