80491378401

素因数分解:

$3^4\times 7^1\times {\mathrm{141960103}}^1$

素因数の和:141960122

約数の個数: 20

約数和(自身を含む): 137417380672

約数和(自身を除く): 56926002271

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 141960103, 425880309, 993720721, 1277640927, 2981162163, 3832922781, 8943486489, 11498768343, 26830459467, 80491378401]

約数ペア:

[(1, 80491378401), (3, 26830459467), (7, 11498768343), (9, 8943486489), (21, 3832922781), (27, 2981162163), (63, 1277640927), (81, 993720721), (189, 425880309), (567, 141960103)]