20489154

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{69691}}^1$

素因数の和:69710

約数の個数: 24

約数和(自身を含む): 47669328

約数和(自身を除く): 27180174

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 69691, 139382, 209073, 418146, 487837, 975674, 1463511, 2927022, 3414859, 6829718, 10244577, 20489154]

約数ペア:

[(1, 20489154), (2, 10244577), (3, 6829718), (6, 3414859), (7, 2927022), (14, 1463511), (21, 975674), (42, 487837), (49, 418146), (98, 209073), (147, 139382), (294, 69691)]