19737221

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2719}}^1$

素因数の和:2804

約数の個数: 16

約数和(自身を含む): 24284160

約数和(自身を除く): 4546939

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2719, 7259, 19033, 46223, 165859, 323561, 1161013, 2819603, 19737221]

約数ペア:

[(1, 19737221), (7, 2819603), (17, 1161013), (61, 323561), (119, 165859), (427, 46223), (1037, 19033), (2719, 7259)]