27917897

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 34583040

約数和(自身を除く): 6665143

約数列:

[1, 7, 19, 49, 133, 157, 191, 931, 1099, 1337, 2983, 3629, 7693, 9359, 20881, 25403, 29987, 146167, 177821, 209909, 569753, 1469363, 3988271, 27917897]

約数ペア:

[(1, 27917897), (7, 3988271), (19, 1469363), (49, 569753), (133, 209909), (157, 177821), (191, 146167), (931, 29987), (1099, 25403), (1337, 20881), (2983, 9359), (3629, 7693)]