20445639

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 27818112

約数和(自身を除く): 7372473

約数列:

[1, 3, 83, 157, 249, 471, 523, 1569, 13031, 39093, 43409, 82111, 130227, 246333, 6815213, 20445639]

約数ペア:

[(1, 20445639), (3, 6815213), (83, 246333), (157, 130227), (249, 82111), (471, 43409), (523, 39093), (1569, 13031)]