21542183

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 24060960

約数和(自身を除く): 2518777

約数列:

[1, 13, 43, 89, 433, 559, 1157, 3827, 5629, 18619, 38537, 49751, 242047, 500981, 1657091, 21542183]

約数ペア:

[(1, 21542183), (13, 1657091), (43, 500981), (89, 242047), (433, 49751), (559, 38537), (1157, 18619), (3827, 5629)]