19469989

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 24786944

約数和(自身を除く): 5316955

約数列:

[1, 7, 11, 77, 121, 127, 181, 847, 889, 1267, 1397, 1991, 9779, 13937, 15367, 21901, 22987, 107569, 153307, 160909, 252857, 1769999, 2781427, 19469989]

約数ペア:

[(1, 19469989), (7, 2781427), (11, 1769999), (77, 252857), (121, 160909), (127, 153307), (181, 107569), (847, 22987), (889, 21901), (1267, 15367), (1397, 13937), (1991, 9779)]