21994368

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:196

約数の個数: 128

約数和(自身を含む): 65802240

約数和(自身を除く): 43807872

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 41, 44, 48, 64, 66, 82, 88, 96, 123, 127, 128, 132, 164, 176, 192, 246, 254, 264, 328, 352, 381, 384, 451, 492, 508, 528, 656, 704, 762, 902, 984, 1016, 1056, 1312, 1353, 1397, 1408, 1524, 1804, 1968, 2032, 2112, 2624, 2706, 2794, 3048, 3608, 3936, 4064, 4191, 4224, 5207, 5248, 5412, 5588, 6096, 7216, 7872, 8128, 8382, 10414, 10824, 11176, 12192, 14432, 15621, 15744, 16256, 16764, 20828, 21648, 22352, 24384, 28864, 31242, 33528, 41656, 43296, 44704, 48768, 57277, 57728, 62484, 67056, 83312, 86592, 89408, 114554, 124968, 134112, 166624, 171831, 173184, 178816, 229108, 249936, 268224, 333248, 343662, 458216, 499872, 536448, 666496, 687324, 916432, 999744, 1374648, 1832864, 1999488, 2749296, 3665728, 5498592, 7331456, 10997184, 21994368]

約数ペア:

[(1, 21994368), (2, 10997184), (3, 7331456), (4, 5498592), (6, 3665728), (8, 2749296), (11, 1999488), (12, 1832864), (16, 1374648), (22, 999744), (24, 916432), (32, 687324), (33, 666496), (41, 536448), (44, 499872), (48, 458216), (64, 343662), (66, 333248), (82, 268224), (88, 249936), (96, 229108), (123, 178816), (127, 173184), (128, 171831), (132, 166624), (164, 134112), (176, 124968), (192, 114554), (246, 89408), (254, 86592), (264, 83312), (328, 67056), (352, 62484), (381, 57728), (384, 57277), (451, 48768), (492, 44704), (508, 43296), (528, 41656), (656, 33528), (704, 31242), (762, 28864), (902, 24384), (984, 22352), (1016, 21648), (1056, 20828), (1312, 16764), (1353, 16256), (1397, 15744), (1408, 15621), (1524, 14432), (1804, 12192), (1968, 11176), (2032, 10824), (2112, 10414), (2624, 8382), (2706, 8128), (2794, 7872), (3048, 7216), (3608, 6096), (3936, 5588), (4064, 5412), (4191, 5248), (4224, 5207)]