21056476

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2027}}^1$

素因数の和:2098

約数の個数: 36

約数和(自身を含む): 43695288

約数和(自身を除く): 22638812

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 196, 212, 371, 742, 1484, 2027, 2597, 4054, 5194, 8108, 10388, 14189, 28378, 56756, 99323, 107431, 198646, 214862, 397292, 429724, 752017, 1504034, 3008068, 5264119, 10528238, 21056476]

約数ペア:

[(1, 21056476), (2, 10528238), (4, 5264119), (7, 3008068), (14, 1504034), (28, 752017), (49, 429724), (53, 397292), (98, 214862), (106, 198646), (196, 107431), (212, 99323), (371, 56756), (742, 28378), (1484, 14189), (2027, 10388), (2597, 8108), (4054, 5194)]