20219451

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^2\times {\mathrm{191}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 31414272

約数和(自身を除く): 11194821

約数列:

[1, 3, 7, 21, 71, 191, 213, 497, 573, 1337, 1491, 4011, 5041, 13561, 15123, 35287, 40683, 94927, 105861, 284781, 962831, 2888493, 6739817, 20219451]

約数ペア:

[(1, 20219451), (3, 6739817), (7, 2888493), (21, 962831), (71, 284781), (191, 105861), (213, 94927), (497, 40683), (573, 35287), (1337, 15123), (1491, 13561), (4011, 5041)]