20807724

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247711}}^1$

素因数の和:247725

約数の個数: 24

約数和(自身を含む): 55487488

約数和(自身を除く): 34679764

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247711, 495422, 743133, 990844, 1486266, 1733977, 2972532, 3467954, 5201931, 6935908, 10403862, 20807724]

約数ペア:

[(1, 20807724), (2, 10403862), (3, 6935908), (4, 5201931), (6, 3467954), (7, 2972532), (12, 1733977), (14, 1486266), (21, 990844), (28, 743133), (42, 495422), (84, 247711)]