21321521

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{277}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 23912448

約数和(自身を除く): 2590927

約数列:

[1, 13, 31, 191, 277, 403, 2483, 3601, 5921, 8587, 52907, 76973, 111631, 687791, 1640117, 21321521]

約数ペア:

[(1, 21321521), (13, 1640117), (31, 687791), (191, 111631), (277, 76973), (403, 52907), (2483, 8587), (3601, 5921)]