20794977

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4649}}^1$

素因数の和:4733

約数の個数: 24

約数和(自身を含む): 34819200

約数和(自身を除く): 14024223

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 4649, 13947, 32543, 41841, 97629, 292887, 330079, 990237, 2310553, 2970711, 6931659, 20794977]

約数ペア:

[(1, 20794977), (3, 6931659), (7, 2970711), (9, 2310553), (21, 990237), (63, 330079), (71, 292887), (213, 97629), (497, 41841), (639, 32543), (1491, 13947), (4473, 4649)]