20946805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 29766528

約数和(自身を除く): 8819723

約数列:

[1, 5, 11, 17, 43, 55, 85, 187, 215, 473, 521, 731, 935, 2365, 2605, 3655, 5731, 8041, 8857, 22403, 28655, 40205, 44285, 97427, 112015, 246433, 380851, 487135, 1232165, 1904255, 4189361, 20946805]

約数ペア:

[(1, 20946805), (5, 4189361), (11, 1904255), (17, 1232165), (43, 487135), (55, 380851), (85, 246433), (187, 112015), (215, 97427), (473, 44285), (521, 40205), (731, 28655), (935, 22403), (2365, 8857), (2605, 8041), (3655, 5731)]