19387281

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1097}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 26668224

約数和(自身を除く): 7280943

約数列:

[1, 3, 43, 129, 137, 411, 1097, 3291, 5891, 17673, 47171, 141513, 150289, 450867, 6462427, 19387281]

約数ペア:

[(1, 19387281), (3, 6462427), (43, 450867), (129, 150289), (137, 141513), (411, 47171), (1097, 17673), (3291, 5891)]