28687337

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 33530112

約数和(自身を除く): 4842775

約数列:

[1, 7, 71, 197, 293, 497, 1379, 2051, 13987, 20803, 57721, 97909, 145621, 404047, 4098191, 28687337]

約数ペア:

[(1, 28687337), (7, 4098191), (71, 404047), (197, 145621), (293, 97909), (497, 57721), (1379, 20803), (2051, 13987)]