19680881759

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{613}}^1\times {\mathrm{24527}}^1$

素因数の和:25175

約数の個数: 32

約数和(自身を含む): 26024011776

約数和(自身を除く): 6343130017

約数列:

[1, 7, 11, 17, 77, 119, 187, 613, 1309, 4291, 6743, 10421, 24527, 47201, 72947, 114631, 171689, 269797, 416959, 802417, 1888579, 2918713, 4586549, 15035051, 32105843, 105245357, 165385561, 255595867, 1157698927, 1789171069, 2811554537, 19680881759]

約数ペア:

[(1, 19680881759), (7, 2811554537), (11, 1789171069), (17, 1157698927), (77, 255595867), (119, 165385561), (187, 105245357), (613, 32105843), (1309, 15035051), (4291, 4586549), (6743, 2918713), (10421, 1888579), (24527, 802417), (47201, 416959), (72947, 269797), (114631, 171689)]