19387473

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13003}}^1$

素因数の和:13084

約数の個数: 16

約数和(自身を含む): 29961216

約数和(自身を除く): 10573743

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13003, 39009, 91021, 273063, 923213, 2769639, 6462491, 19387473]

約数ペア:

[(1, 19387473), (3, 6462491), (7, 2769639), (21, 923213), (71, 273063), (213, 91021), (497, 39009), (1491, 13003)]