281720379

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{293}}^1\times {\mathrm{1109}}^1$

素因数の和:1439

約数の個数: 24

約数和(自身を含む): 400745520

約数和(自身を除く): 119025141

約数列:

[1, 3, 17, 51, 289, 293, 867, 879, 1109, 3327, 4981, 14943, 18853, 56559, 84677, 254031, 320501, 324937, 961503, 974811, 5523929, 16571787, 93906793, 281720379]

約数ペア:

[(1, 281720379), (3, 93906793), (17, 16571787), (51, 5523929), (289, 974811), (293, 961503), (867, 324937), (879, 320501), (1109, 254031), (3327, 84677), (4981, 56559), (14943, 18853)]