21654040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23537}}^1$

素因数の和:23571

約数の個数: 32

約数和(自身を含む): 50842080

約数和(自身を除く): 29188040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23537, 47074, 94148, 117685, 188296, 235370, 470740, 541351, 941480, 1082702, 2165404, 2706755, 4330808, 5413510, 10827020, 21654040]

約数ペア:

[(1, 21654040), (2, 10827020), (4, 5413510), (5, 4330808), (8, 2706755), (10, 2165404), (20, 1082702), (23, 941480), (40, 541351), (46, 470740), (92, 235370), (115, 188296), (184, 117685), (230, 94148), (460, 47074), (920, 23537)]