21062391

素因数分解:

$3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{3701}}^1$

素因数の和:3982

約数の個数: 16

約数和(自身を含む): 32222208

約数和(自身を除く): 11159817

約数列:

[1, 3, 7, 21, 271, 813, 1897, 3701, 5691, 11103, 25907, 77721, 1002971, 3008913, 7020797, 21062391]

約数ペア:

[(1, 21062391), (3, 7020797), (7, 3008913), (21, 1002971), (271, 77721), (813, 25907), (1897, 11103), (3701, 5691)]