3988271

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:374

約数の個数: 16

約数和(自身を含む): 4853760

約数和(自身を除く): 865489

約数列:

[1, 7, 19, 133, 157, 191, 1099, 1337, 2983, 3629, 20881, 25403, 29987, 209909, 569753, 3988271]

約数ペア:

[(1, 3988271), (7, 569753), (19, 209909), (133, 29987), (157, 25403), (191, 20881), (1099, 3629), (1337, 2983)]