18654327

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 10237833

約数列:

[1, 3, 9, 27, 37, 71, 111, 213, 263, 333, 639, 789, 999, 1917, 2367, 2627, 7101, 7881, 9731, 18673, 23643, 29193, 56019, 70929, 87579, 168057, 262737, 504171, 690901, 2072703, 6218109, 18654327]

約数ペア:

[(1, 18654327), (3, 6218109), (9, 2072703), (27, 690901), (37, 504171), (71, 262737), (111, 168057), (213, 87579), (263, 70929), (333, 56019), (639, 29193), (789, 23643), (999, 18673), (1917, 9731), (2367, 7881), (2627, 7101)]