21039517

素因数分解:

${\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:336

約数の個数: 16

約数和(自身を含む): 22809600

約数和(自身を除く): 1770083

約数列:

[1, 19, 79, 107, 131, 1501, 2033, 2489, 8453, 10349, 14017, 160607, 196631, 266323, 1107343, 21039517]

約数ペア:

[(1, 21039517), (19, 1107343), (79, 266323), (107, 196631), (131, 160607), (1501, 14017), (2033, 10349), (2489, 8453)]