257895721

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{5449}}^1$

素因数の和:5568

約数の個数: 16

約数和(自身を含む): 282528000

約数和(自身を除く): 24632279

約数列:

[1, 19, 47, 53, 893, 1007, 2491, 5449, 47329, 103531, 256103, 288797, 4865957, 5487143, 13573459, 257895721]

約数ペア:

[(1, 257895721), (19, 13573459), (47, 5487143), (53, 4865957), (893, 288797), (1007, 256103), (2491, 103531), (5449, 47329)]