87021891

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{7919}}^1$

素因数の和:7976

約数の個数: 32

約数和(自身を含む): 144460800

約数和(自身を除く): 57438909

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 297, 333, 407, 999, 1221, 3663, 7919, 10989, 23757, 71271, 87109, 213813, 261327, 293003, 783981, 879009, 2351943, 2637027, 3223033, 7911081, 9669099, 29007297, 87021891]

約数ペア:

[(1, 87021891), (3, 29007297), (9, 9669099), (11, 7911081), (27, 3223033), (33, 2637027), (37, 2351943), (99, 879009), (111, 783981), (297, 293003), (333, 261327), (407, 213813), (999, 87109), (1221, 71271), (3663, 23757), (7919, 10989)]