686151

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 20

約数和(自身を含む): 1054152

約数和(自身を除く): 368001

約数列:

[1, 3, 9, 27, 43, 81, 129, 197, 387, 591, 1161, 1773, 3483, 5319, 8471, 15957, 25413, 76239, 228717, 686151]

約数ペア:

[(1, 686151), (3, 228717), (9, 76239), (27, 25413), (43, 15957), (81, 8471), (129, 5319), (197, 3483), (387, 1773), (591, 1161)]