21913307927

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1\times {\mathrm{3209}}^1$

素因数の和:3515

約数の個数: 32

約数和(自身を含む): 25820726400

約数和(自身を除く): 3907418473

約数列:

[1, 7, 89, 97, 113, 623, 679, 791, 3209, 8633, 10057, 10961, 22463, 60431, 70399, 76727, 285601, 311273, 362617, 975529, 1999207, 2178911, 2538319, 6828703, 27703297, 32272913, 35173849, 193923079, 225910391, 246216943, 3130472561, 21913307927]

約数ペア:

[(1, 21913307927), (7, 3130472561), (89, 246216943), (97, 225910391), (113, 193923079), (623, 35173849), (679, 32272913), (791, 27703297), (3209, 6828703), (8633, 2538319), (10057, 2178911), (10961, 1999207), (22463, 975529), (60431, 362617), (70399, 311273), (76727, 285601)]