1871779

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 2345728

約数和(自身を除く): 473949

約数列:

[1, 7, 13, 67, 91, 307, 469, 871, 2149, 3991, 6097, 20569, 27937, 143983, 267397, 1871779]

約数ペア:

[(1, 1871779), (7, 267397), (13, 143983), (67, 27937), (91, 20569), (307, 6097), (469, 3991), (871, 2149)]