211370979

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1\times {\mathrm{4157}}^1$

素因数の和:5174

約数の個数: 16

約数和(自身を含む): 298777248

約数和(自身を除く): 87406269

約数列:

[1, 3, 17, 51, 997, 2991, 4157, 12471, 16949, 50847, 70669, 212007, 4144529, 12433587, 70456993, 211370979]

約数ペア:

[(1, 211370979), (3, 70456993), (17, 12433587), (51, 4144529), (997, 212007), (2991, 70669), (4157, 50847), (12471, 16949)]