9720729

素因数分解:

$3^5\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 14734720

約数和(自身を除く): 5013991

約数列:

[1, 3, 9, 27, 81, 109, 243, 327, 367, 981, 1101, 2943, 3303, 8829, 9909, 26487, 29727, 40003, 89181, 120009, 360027, 1080081, 3240243, 9720729]

約数ペア:

[(1, 9720729), (3, 3240243), (9, 1080081), (27, 360027), (81, 120009), (109, 89181), (243, 40003), (327, 29727), (367, 26487), (981, 9909), (1101, 8829), (2943, 3303)]