201991161

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{67129}}^1$

素因数の和:67208

約数の個数: 16

約数和(自身を含む): 290001600

約数和(自身を除く): 88010439

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 67129, 201387, 1141193, 3423579, 3960611, 11881833, 67330387, 201991161]

約数ペア:

[(1, 201991161), (3, 67330387), (17, 11881833), (51, 3960611), (59, 3423579), (177, 1141193), (1003, 201387), (3009, 67129)]