19931049

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 30862080

約数和(自身を除く): 10931031

約数列:

[1, 3, 9, 27, 37, 71, 111, 213, 281, 333, 639, 843, 999, 1917, 2529, 2627, 7587, 7881, 10397, 19951, 23643, 31191, 59853, 70929, 93573, 179559, 280719, 538677, 738187, 2214561, 6643683, 19931049]

約数ペア:

[(1, 19931049), (3, 6643683), (9, 2214561), (27, 738187), (37, 538677), (71, 280719), (111, 179559), (213, 93573), (281, 70929), (333, 59853), (639, 31191), (843, 23643), (999, 19951), (1917, 10397), (2529, 7881), (2627, 7587)]