21204896

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 44561664

約数和(自身を除く): 23356768

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 47, 92, 94, 184, 188, 368, 376, 613, 736, 752, 1081, 1226, 1504, 2162, 2452, 4324, 4904, 8648, 9808, 14099, 17296, 19616, 28198, 28811, 34592, 56396, 57622, 112792, 115244, 225584, 230488, 451168, 460976, 662653, 921952, 1325306, 2650612, 5301224, 10602448, 21204896]

約数ペア:

[(1, 21204896), (2, 10602448), (4, 5301224), (8, 2650612), (16, 1325306), (23, 921952), (32, 662653), (46, 460976), (47, 451168), (92, 230488), (94, 225584), (184, 115244), (188, 112792), (368, 57622), (376, 56396), (613, 34592), (736, 28811), (752, 28198), (1081, 19616), (1226, 17296), (1504, 14099), (2162, 9808), (2452, 8648), (4324, 4904)]