18603207

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4159}}^1$

素因数の和:4243

約数の個数: 24

約数和(自身を含む): 31150080

約数和(自身を除く): 12546873

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4159, 4473, 12477, 29113, 37431, 87339, 262017, 295289, 885867, 2067023, 2657601, 6201069, 18603207]

約数ペア:

[(1, 18603207), (3, 6201069), (7, 2657601), (9, 2067023), (21, 885867), (63, 295289), (71, 262017), (213, 87339), (497, 37431), (639, 29113), (1491, 12477), (4159, 4473)]