199831191

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{5981}}^1$

素因数の和:6071

約数の個数: 32

約数和(自身を含む): 320060928

約数和(自身を除く): 120229737

約数列:

[1, 3, 7, 21, 37, 43, 111, 129, 259, 301, 777, 903, 1591, 4773, 5981, 11137, 17943, 33411, 41867, 125601, 221297, 257183, 663891, 771549, 1549079, 1800281, 4647237, 5400843, 9515771, 28547313, 66610397, 199831191]

約数ペア:

[(1, 199831191), (3, 66610397), (7, 28547313), (21, 9515771), (37, 5400843), (43, 4647237), (111, 1800281), (129, 1549079), (259, 771549), (301, 663891), (777, 257183), (903, 221297), (1591, 125601), (4773, 41867), (5981, 33411), (11137, 17943)]