21498159

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{853}}^1$

素因数の和:1158

約数の個数: 16

約数和(自身を含む): 29732864

約数和(自身を除く): 8234705

約数列:

[1, 3, 31, 93, 271, 813, 853, 2559, 8401, 25203, 26443, 79329, 231163, 693489, 7166053, 21498159]

約数ペア:

[(1, 21498159), (3, 7166053), (31, 693489), (93, 231163), (271, 79329), (813, 26443), (853, 25203), (2559, 8401)]