1320234957

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{63421}}^1$

素因数の和:63690

約数の個数: 20

約数和(自身を含む): 1979907996

約数和(自身を除く): 659673039

約数列:

[1, 3, 9, 27, 81, 257, 771, 2313, 6939, 20817, 63421, 190263, 570789, 1712367, 5137101, 16299197, 48897591, 146692773, 440078319, 1320234957]

約数ペア:

[(1, 1320234957), (3, 440078319), (9, 146692773), (27, 48897591), (81, 16299197), (257, 5137101), (771, 1712367), (2313, 570789), (6939, 190263), (20817, 63421)]