21885340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57593}}^1$

素因数の和:57621

約数の個数: 24

約数和(自身を含む): 48378960

約数和(自身を除く): 26493620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 57593, 115186, 230372, 287965, 575930, 1094267, 1151860, 2188534, 4377068, 5471335, 10942670, 21885340]

約数ペア:

[(1, 21885340), (2, 10942670), (4, 5471335), (5, 4377068), (10, 2188534), (19, 1151860), (20, 1094267), (38, 575930), (76, 287965), (95, 230372), (190, 115186), (380, 57593)]