18798381

素因数分解:

$3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1303}}^1$

素因数の和:1545

約数の個数: 24

約数和(自身を含む): 31191680

約数和(自身を除く): 12393299

約数列:

[1, 3, 7, 9, 21, 63, 229, 687, 1303, 1603, 2061, 3909, 4809, 9121, 11727, 14427, 27363, 82089, 298387, 895161, 2088709, 2685483, 6266127, 18798381]

約数ペア:

[(1, 18798381), (3, 6266127), (7, 2685483), (9, 2088709), (21, 895161), (63, 298387), (229, 82089), (687, 27363), (1303, 14427), (1603, 11727), (2061, 9121), (3909, 4809)]