28380191

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3359}}^1$

素因数の和:3454

約数の個数: 16

約数和(自身を含む): 34836480

約数和(自身を除く): 6456289

約数列:

[1, 7, 17, 71, 119, 497, 1207, 3359, 8449, 23513, 57103, 238489, 399721, 1669423, 4054313, 28380191]

約数ペア:

[(1, 28380191), (7, 4054313), (17, 1669423), (71, 399721), (119, 238489), (497, 57103), (1207, 23513), (3359, 8449)]