19788171

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{5701}}^1$

素因数の和:5806

約数の個数: 16

約数和(自身を含む): 28738080

約数和(自身を除く): 8949909

約数列:

[1, 3, 13, 39, 89, 267, 1157, 3471, 5701, 17103, 74113, 222339, 507389, 1522167, 6596057, 19788171]

約数ペア:

[(1, 19788171), (3, 6596057), (13, 1522167), (39, 507389), (89, 222339), (267, 74113), (1157, 17103), (3471, 5701)]