21551771392

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{503}}^1\times {\mathrm{5399}}^1$

素因数の和:5949

約数の個数: 72

約数和(自身を含む): 44503603200

約数和(自身を除く): 22951831808

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 503, 992, 1006, 1984, 2012, 3968, 4024, 5399, 7936, 8048, 10798, 15593, 16096, 21596, 31186, 32192, 43192, 62372, 64384, 86384, 124744, 128768, 167369, 172768, 249488, 334738, 345536, 498976, 669476, 691072, 997952, 1338952, 1382144, 1995904, 2677904, 2715697, 3991808, 5355808, 5431394, 10711616, 10862788, 21423232, 21725576, 42846464, 43451152, 84186607, 86902304, 168373214, 173804608, 336746428, 347609216, 673492856, 695218432, 1346985712, 2693971424, 5387942848, 10775885696, 21551771392]

約数ペア:

[(1, 21551771392), (2, 10775885696), (4, 5387942848), (8, 2693971424), (16, 1346985712), (31, 695218432), (32, 673492856), (62, 347609216), (64, 336746428), (124, 173804608), (128, 168373214), (248, 86902304), (256, 84186607), (496, 43451152), (503, 42846464), (992, 21725576), (1006, 21423232), (1984, 10862788), (2012, 10711616), (3968, 5431394), (4024, 5355808), (5399, 3991808), (7936, 2715697), (8048, 2677904), (10798, 1995904), (15593, 1382144), (16096, 1338952), (21596, 997952), (31186, 691072), (32192, 669476), (43192, 498976), (62372, 345536), (64384, 334738), (86384, 249488), (124744, 172768), (128768, 167369)]