2001987

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 3171168

約数和(自身を除く): 1169181

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 241, 639, 723, 923, 2169, 2769, 3133, 8307, 9399, 17111, 28197, 51333, 153999, 222443, 667329, 2001987]

約数ペア:

[(1, 2001987), (3, 667329), (9, 222443), (13, 153999), (39, 51333), (71, 28197), (117, 17111), (213, 9399), (241, 8307), (639, 3133), (723, 2769), (923, 2169)]