66815905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{21871}}^1$

素因数の和:21936

約数の個数: 16

約数和(自身を含む): 88187904

約数和(自身を除く): 21371999

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 21871, 109355, 284323, 1027937, 1421615, 5139685, 13363181, 66815905]

約数ペア:

[(1, 66815905), (5, 13363181), (13, 5139685), (47, 1421615), (65, 1027937), (235, 284323), (611, 109355), (3055, 21871)]