18983769

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21023}}^1$

素因数の和:21076

約数の個数: 16

約数和(自身を含む): 29601792

約数和(自身を除く): 10618023

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21023, 63069, 147161, 441483, 903989, 2711967, 6327923, 18983769]

約数ペア:

[(1, 18983769), (3, 6327923), (7, 2711967), (21, 903989), (43, 441483), (129, 147161), (301, 63069), (903, 21023)]