20041781781

素因数分解:

$3^1\times 7^1\times {\mathrm{881}}^1\times {\mathrm{1021}}^1\times {\mathrm{1061}}^1$

素因数の和:2973

約数の個数: 32

約数和(自身を含む): 30633313536

約数和(自身を除く): 10591531755

約数列:

[1, 3, 7, 21, 881, 1021, 1061, 2643, 3063, 3183, 6167, 7147, 7427, 18501, 21441, 22281, 899501, 934741, 1083281, 2698503, 2804223, 3249843, 6296507, 6543187, 7582967, 18889521, 19629561, 22748901, 954370561, 2863111683, 6680593927, 20041781781]

約数ペア:

[(1, 20041781781), (3, 6680593927), (7, 2863111683), (21, 954370561), (881, 22748901), (1021, 19629561), (1061, 18889521), (2643, 7582967), (3063, 6543187), (3183, 6296507), (6167, 3249843), (7147, 2804223), (7427, 2698503), (18501, 1083281), (21441, 934741), (22281, 899501)]