19666989

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{23497}}^1$

素因数の和:23537

約数の個数: 16

約数和(自身を含む): 30077440

約数和(自身を除く): 10410451

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 23497, 70491, 211473, 634419, 728407, 2185221, 6555663, 19666989]

約数ペア:

[(1, 19666989), (3, 6555663), (9, 2185221), (27, 728407), (31, 634419), (93, 211473), (279, 70491), (837, 23497)]