20085639

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{983}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 31409280

約数和(自身を除く): 11323641

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 983, 2919, 2949, 6811, 6881, 20433, 20643, 48167, 136637, 144501, 409911, 956459, 2869377, 6695213, 20085639]

約数ペア:

[(1, 20085639), (3, 6695213), (7, 2869377), (21, 956459), (49, 409911), (139, 144501), (147, 136637), (417, 48167), (973, 20643), (983, 20433), (2919, 6881), (2949, 6811)]