21133168

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9931}}^1$

素因数の和:9965

約数の個数: 40

約数和(自身を含む): 49262720

約数和(自身を除く): 28129552

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9931, 19862, 39724, 69517, 79448, 139034, 158896, 188689, 278068, 377378, 556136, 754756, 1112272, 1320823, 1509512, 2641646, 3019024, 5283292, 10566584, 21133168]

約数ペア:

[(1, 21133168), (2, 10566584), (4, 5283292), (7, 3019024), (8, 2641646), (14, 1509512), (16, 1320823), (19, 1112272), (28, 754756), (38, 556136), (56, 377378), (76, 278068), (112, 188689), (133, 158896), (152, 139034), (266, 79448), (304, 69517), (532, 39724), (1064, 19862), (2128, 9931)]