21025544

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 40608000

約数和(自身を除く): 19582456

約数列:

[1, 2, 4, 8, 47, 94, 188, 199, 281, 376, 398, 562, 796, 1124, 1592, 2248, 9353, 13207, 18706, 26414, 37412, 52828, 55919, 74824, 105656, 111838, 223676, 447352, 2628193, 5256386, 10512772, 21025544]

約数ペア:

[(1, 21025544), (2, 10512772), (4, 5256386), (8, 2628193), (47, 447352), (94, 223676), (188, 111838), (199, 105656), (281, 74824), (376, 55919), (398, 52828), (562, 37412), (796, 26414), (1124, 18706), (1592, 13207), (2248, 9353)]