399076551

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{259309}}^1$

素因数の和:259340

約数の個数: 20

約数和(自身を含む): 627530200

約数和(自身を除く): 228453649

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 259309, 777927, 2333781, 4926871, 7001343, 14780613, 21004029, 44341839, 133025517, 399076551]

約数ペア:

[(1, 399076551), (3, 133025517), (9, 44341839), (19, 21004029), (27, 14780613), (57, 7001343), (81, 4926871), (171, 2333781), (513, 777927), (1539, 259309)]