20713497

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{3413}}^1$

素因数の和:3457

約数の個数: 24

約数和(自身を含む): 33539136

約数和(自身を除く): 12825639

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 3413, 6069, 10239, 23891, 58021, 71673, 174063, 406147, 986357, 1218441, 2959071, 6904499, 20713497]

約数ペア:

[(1, 20713497), (3, 6904499), (7, 2959071), (17, 1218441), (21, 986357), (51, 406147), (119, 174063), (289, 71673), (357, 58021), (867, 23891), (2023, 10239), (3413, 6069)]