211982155

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{4019}}^1$

素因数の和:4179

約数の個数: 32

約数和(自身を含む): 319541760

約数和(自身を除く): 107559605

約数列:

[1, 5, 7, 11, 35, 55, 77, 137, 385, 685, 959, 1507, 4019, 4795, 7535, 10549, 20095, 28133, 44209, 52745, 140665, 221045, 309463, 550603, 1547315, 2753015, 3854221, 6056633, 19271105, 30283165, 42396431, 211982155]

約数ペア:

[(1, 211982155), (5, 42396431), (7, 30283165), (11, 19271105), (35, 6056633), (55, 3854221), (77, 2753015), (137, 1547315), (385, 550603), (685, 309463), (959, 221045), (1507, 140665), (4019, 52745), (4795, 44209), (7535, 28133), (10549, 20095)]