1899747

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1071

約数の個数: 16

約数和(自身を含む): 2856960

約数和(自身を除く): 957213

約数列:

[1, 3, 9, 27, 71, 213, 639, 991, 1917, 2973, 8919, 26757, 70361, 211083, 633249, 1899747]

約数ペア:

[(1, 1899747), (3, 633249), (9, 211083), (27, 70361), (71, 26757), (213, 8919), (639, 2973), (991, 1917)]