21154136

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 40919040

約数和(自身を除く): 19764904

約数列:

[1, 2, 4, 8, 47, 94, 127, 188, 254, 376, 443, 508, 886, 1016, 1772, 3544, 5969, 11938, 20821, 23876, 41642, 47752, 56261, 83284, 112522, 166568, 225044, 450088, 2644267, 5288534, 10577068, 21154136]

約数ペア:

[(1, 21154136), (2, 10577068), (4, 5288534), (8, 2644267), (47, 450088), (94, 225044), (127, 166568), (188, 112522), (254, 83284), (376, 56261), (443, 47752), (508, 41642), (886, 23876), (1016, 20821), (1772, 11938), (3544, 5969)]