20641917

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1$

素因数の和:1040

約数の個数: 16

約数和(自身を含む): 28224000

約数和(自身を除く): 7582083

約数列:

[1, 3, 59, 139, 177, 417, 839, 2517, 8201, 24603, 49501, 116621, 148503, 349863, 6880639, 20641917]

約数ペア:

[(1, 20641917), (3, 6880639), (59, 349863), (139, 148503), (177, 116621), (417, 49501), (839, 24603), (2517, 8201)]