21293888

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 112

約数和(自身を含む): 54864000

約数和(自身を除く): 33570112

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 29, 32, 44, 56, 58, 64, 77, 88, 112, 116, 149, 154, 176, 203, 224, 232, 298, 308, 319, 352, 406, 448, 464, 596, 616, 638, 704, 812, 928, 1043, 1192, 1232, 1276, 1624, 1639, 1856, 2086, 2233, 2384, 2464, 2552, 3248, 3278, 4172, 4321, 4466, 4768, 4928, 5104, 6496, 6556, 8344, 8642, 8932, 9536, 10208, 11473, 12992, 13112, 16688, 17284, 17864, 20416, 22946, 26224, 30247, 33376, 34568, 35728, 45892, 47531, 52448, 60494, 66752, 69136, 71456, 91784, 95062, 104896, 120988, 138272, 142912, 183568, 190124, 241976, 276544, 332717, 367136, 380248, 483952, 665434, 734272, 760496, 967904, 1330868, 1520992, 1935808, 2661736, 3041984, 5323472, 10646944, 21293888]

約数ペア:

[(1, 21293888), (2, 10646944), (4, 5323472), (7, 3041984), (8, 2661736), (11, 1935808), (14, 1520992), (16, 1330868), (22, 967904), (28, 760496), (29, 734272), (32, 665434), (44, 483952), (56, 380248), (58, 367136), (64, 332717), (77, 276544), (88, 241976), (112, 190124), (116, 183568), (149, 142912), (154, 138272), (176, 120988), (203, 104896), (224, 95062), (232, 91784), (298, 71456), (308, 69136), (319, 66752), (352, 60494), (406, 52448), (448, 47531), (464, 45892), (596, 35728), (616, 34568), (638, 33376), (704, 30247), (812, 26224), (928, 22946), (1043, 20416), (1192, 17864), (1232, 17284), (1276, 16688), (1624, 13112), (1639, 12992), (1856, 11473), (2086, 10208), (2233, 9536), (2384, 8932), (2464, 8642), (2552, 8344), (3248, 6556), (3278, 6496), (4172, 5104), (4321, 4928), (4466, 4768)]