221321984

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{911}}^1$

素因数の和:1013

約数の個数: 72

約数和(自身を含む): 482809152

約数和(自身を除く): 261487168

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 73, 104, 128, 146, 208, 256, 292, 416, 584, 832, 911, 949, 1168, 1664, 1822, 1898, 2336, 3328, 3644, 3796, 4672, 7288, 7592, 9344, 11843, 14576, 15184, 18688, 23686, 29152, 30368, 47372, 58304, 60736, 66503, 94744, 116608, 121472, 133006, 189488, 233216, 242944, 266012, 378976, 532024, 757952, 864539, 1064048, 1515904, 1729078, 2128096, 3031808, 3458156, 4256192, 6916312, 8512384, 13832624, 17024768, 27665248, 55330496, 110660992, 221321984]

約数ペア:

[(1, 221321984), (2, 110660992), (4, 55330496), (8, 27665248), (13, 17024768), (16, 13832624), (26, 8512384), (32, 6916312), (52, 4256192), (64, 3458156), (73, 3031808), (104, 2128096), (128, 1729078), (146, 1515904), (208, 1064048), (256, 864539), (292, 757952), (416, 532024), (584, 378976), (832, 266012), (911, 242944), (949, 233216), (1168, 189488), (1664, 133006), (1822, 121472), (1898, 116608), (2336, 94744), (3328, 66503), (3644, 60736), (3796, 58304), (4672, 47372), (7288, 30368), (7592, 29152), (9344, 23686), (11843, 18688), (14576, 15184)]