20521653

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{6793}}^1$

素因数の和:6868

約数の個数: 16

約数和(自身を含む): 29350080

約数和(自身を除く): 8828427

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 6793, 20379, 129067, 360029, 387201, 1080087, 6840551, 20521653]

約数ペア:

[(1, 20521653), (3, 6840551), (19, 1080087), (53, 387201), (57, 360029), (159, 129067), (1007, 20379), (3021, 6793)]