18338481

素因数分解:

$3^5\times 7^1\times {\mathrm{10781}}^1$

素因数の和:10803

約数の個数: 24

約数和(自身を含む): 31397184

約数和(自身を除く): 13058703

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 10781, 32343, 75467, 97029, 226401, 291087, 679203, 873261, 2037609, 2619783, 6112827, 18338481]

約数ペア:

[(1, 18338481), (3, 6112827), (7, 2619783), (9, 2037609), (21, 873261), (27, 679203), (63, 291087), (81, 226401), (189, 97029), (243, 75467), (567, 32343), (1701, 10781)]