21765408

素因数分解:

$2^5\times 3^1\times 7^3\times {\mathrm{661}}^1$

素因数の和:695

約数の個数: 96

約数和(自身を含む): 66729600

約数和(自身を除く): 44964192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 84, 96, 98, 112, 147, 168, 196, 224, 294, 336, 343, 392, 588, 661, 672, 686, 784, 1029, 1176, 1322, 1372, 1568, 1983, 2058, 2352, 2644, 2744, 3966, 4116, 4627, 4704, 5288, 5488, 7932, 8232, 9254, 10576, 10976, 13881, 15864, 16464, 18508, 21152, 27762, 31728, 32389, 32928, 37016, 55524, 63456, 64778, 74032, 97167, 111048, 129556, 148064, 194334, 222096, 226723, 259112, 388668, 444192, 453446, 518224, 680169, 777336, 906892, 1036448, 1360338, 1554672, 1813784, 2720676, 3109344, 3627568, 5441352, 7255136, 10882704, 21765408]

約数ペア:

[(1, 21765408), (2, 10882704), (3, 7255136), (4, 5441352), (6, 3627568), (7, 3109344), (8, 2720676), (12, 1813784), (14, 1554672), (16, 1360338), (21, 1036448), (24, 906892), (28, 777336), (32, 680169), (42, 518224), (48, 453446), (49, 444192), (56, 388668), (84, 259112), (96, 226723), (98, 222096), (112, 194334), (147, 148064), (168, 129556), (196, 111048), (224, 97167), (294, 74032), (336, 64778), (343, 63456), (392, 55524), (588, 37016), (661, 32928), (672, 32389), (686, 31728), (784, 27762), (1029, 21152), (1176, 18508), (1322, 16464), (1372, 15864), (1568, 13881), (1983, 10976), (2058, 10576), (2352, 9254), (2644, 8232), (2744, 7932), (3966, 5488), (4116, 5288), (4627, 4704)]