1989801

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 3182400

約数和(自身を除く): 1192599

約数列:

[1, 3, 9, 11, 33, 99, 101, 199, 303, 597, 909, 1111, 1791, 2189, 3333, 6567, 9999, 19701, 20099, 60297, 180891, 221089, 663267, 1989801]

約数ペア:

[(1, 1989801), (3, 663267), (9, 221089), (11, 180891), (33, 60297), (99, 20099), (101, 19701), (199, 9999), (303, 6567), (597, 3333), (909, 2189), (1111, 1791)]