18581991

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1\times {\mathrm{379}}^1$

素因数の和:718

約数の個数: 16

約数和(自身を含む): 25353600

約数和(自身を除く): 6771609

約数列:

[1, 3, 59, 177, 277, 379, 831, 1137, 16343, 22361, 49029, 67083, 104983, 314949, 6193997, 18581991]

約数ペア:

[(1, 18581991), (3, 6193997), (59, 314949), (177, 104983), (277, 67083), (379, 49029), (831, 22361), (1137, 16343)]