68240781

素因数分解:

$3^2\times 7^2\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:862

約数の個数: 36

約数和(自身を含む): 115287744

約数和(自身を除く): 47046963

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 271, 441, 571, 813, 1713, 1897, 2439, 3997, 5139, 5691, 11991, 13279, 17073, 27979, 35973, 39837, 83937, 119511, 154741, 251811, 464223, 1083187, 1392669, 3249561, 7582309, 9748683, 22746927, 68240781]

約数ペア:

[(1, 68240781), (3, 22746927), (7, 9748683), (9, 7582309), (21, 3249561), (49, 1392669), (63, 1083187), (147, 464223), (271, 251811), (441, 154741), (571, 119511), (813, 83937), (1713, 39837), (1897, 35973), (2439, 27979), (3997, 17073), (5139, 13279), (5691, 11991)]