19991799

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{6793}}^1$

素因数の和:6911

約数の個数: 16

約数和(自身を含む): 29893600

約数和(自身を除く): 9901801

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 6793, 20379, 61137, 183411, 740437, 2221311, 6663933, 19991799]

約数ペア:

[(1, 19991799), (3, 6663933), (9, 2221311), (27, 740437), (109, 183411), (327, 61137), (981, 20379), (2943, 6793)]