21085443

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 31272800

約数和(自身を除く): 10187357

約数列:

[1, 3, 9, 61, 183, 193, 199, 549, 579, 597, 1737, 1791, 11773, 12139, 35319, 36417, 38407, 105957, 109251, 115221, 345663, 2342827, 7028481, 21085443]

約数ペア:

[(1, 21085443), (3, 7028481), (9, 2342827), (61, 345663), (183, 115221), (193, 109251), (199, 105957), (549, 38407), (579, 36417), (597, 35319), (1737, 12139), (1791, 11773)]