20497131

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{4289}}^1$

素因数の和:4360

約数の個数: 20

約数和(自身を含む): 31145400

約数和(自身を除く): 10648269

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4289, 4779, 12867, 38601, 115803, 253051, 347409, 759153, 2277459, 6832377, 20497131]

約数ペア:

[(1, 20497131), (3, 6832377), (9, 2277459), (27, 759153), (59, 347409), (81, 253051), (177, 115803), (531, 38601), (1593, 12867), (4289, 4779)]