17909991

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{20101}}^1$

素因数の和:20124

約数の個数: 20

約数和(自身を含む): 29188104

約数和(自身を除く): 11278113

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 20101, 60303, 180909, 221111, 542727, 663333, 1628181, 1989999, 5969997, 17909991]

約数ペア:

[(1, 17909991), (3, 5969997), (9, 1989999), (11, 1628181), (27, 663333), (33, 542727), (81, 221111), (99, 180909), (297, 60303), (891, 20101)]