78338421

素因数分解:

$3^4\times 7^1\times {\mathrm{138163}}^1$

素因数の和:138182

約数の個数: 20

約数和(自身を含む): 133742752

約数和(自身を除く): 55404331

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 138163, 414489, 967141, 1243467, 2901423, 3730401, 8704269, 11191203, 26112807, 78338421]

約数ペア:

[(1, 78338421), (3, 26112807), (7, 11191203), (9, 8704269), (21, 3730401), (27, 2901423), (63, 1243467), (81, 967141), (189, 414489), (567, 138163)]