77981071

素因数分解:

$7^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 90345024

約数和(自身を除く): 12363953

約数列:

[1, 7, 193, 197, 293, 1351, 1379, 2051, 38021, 56549, 57721, 266147, 395843, 404047, 11140153, 77981071]

約数ペア:

[(1, 77981071), (7, 11140153), (193, 404047), (197, 395843), (293, 266147), (1351, 57721), (1379, 56549), (2051, 38021)]