400707

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:129

約数の個数: 24

約数和(自身を含む): 642096

約数和(自身を除く): 241389

約数列:

[1, 3, 9, 17, 27, 51, 81, 97, 153, 243, 291, 459, 873, 1377, 1649, 2619, 4131, 4947, 7857, 14841, 23571, 44523, 133569, 400707]

約数ペア:

[(1, 400707), (3, 133569), (9, 44523), (17, 23571), (27, 14841), (51, 7857), (81, 4947), (97, 4131), (153, 2619), (243, 1649), (291, 1377), (459, 873)]