21821177

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{859}}^1$

素因数の和:1076

約数の個数: 16

約数和(自身を含む): 26419200

約数和(自身を除く): 4598023

約数列:

[1, 7, 19, 133, 191, 859, 1337, 3629, 6013, 16321, 25403, 114247, 164069, 1148483, 3117311, 21821177]

約数ペア:

[(1, 21821177), (7, 3117311), (19, 1148483), (133, 164069), (191, 114247), (859, 25403), (1337, 16321), (3629, 6013)]