27921943

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 32901120

約数和(自身を除く): 4979177

約数列:

[1, 7, 41, 271, 287, 359, 1897, 2513, 11111, 14719, 77777, 97289, 103033, 681023, 3988849, 27921943]

約数ペア:

[(1, 27921943), (7, 3988849), (41, 681023), (271, 103033), (287, 97289), (359, 77777), (1897, 14719), (2513, 11111)]