20528963

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{521}}^1$

素因数の和:974

約数の個数: 16

約数和(自身を含む): 25373376

約数和(自身を除く): 4844413

約数列:

[1, 7, 13, 91, 433, 521, 3031, 3647, 5629, 6773, 39403, 47411, 225593, 1579151, 2932709, 20528963]

約数ペア:

[(1, 20528963), (7, 2932709), (13, 1579151), (91, 225593), (433, 47411), (521, 39403), (3031, 6773), (3647, 5629)]