20487537

素因数分解:

$3^2\times 7^2\times {\mathrm{46457}}^1$

素因数の和:46477

約数の個数: 18

約数和(自身を含む): 34425378

約数和(自身を除く): 13937841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 46457, 139371, 325199, 418113, 975597, 2276393, 2926791, 6829179, 20487537]

約数ペア:

[(1, 20487537), (3, 6829179), (7, 2926791), (9, 2276393), (21, 975597), (49, 418113), (63, 325199), (147, 139371), (441, 46457)]