168339981

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{21247}}^1$

素因数の和:21408

約数の個数: 16

約数和(自身を含む): 237977600

約数和(自身を除く): 69637619

約数列:

[1, 3, 19, 57, 139, 417, 2641, 7923, 21247, 63741, 403693, 1211079, 2953333, 8859999, 56113327, 168339981]

約数ペア:

[(1, 168339981), (3, 56113327), (19, 8859999), (57, 2953333), (139, 1211079), (417, 403693), (2641, 63741), (7923, 21247)]