20964822

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3533}}^1$

素因数の和:3604

約数の個数: 32

約数和(自身を含む): 44782848

約数和(自身を除く): 23818026

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 86, 129, 138, 258, 989, 1978, 2967, 3533, 5934, 7066, 10599, 21198, 81259, 151919, 162518, 243777, 303838, 455757, 487554, 911514, 3494137, 6988274, 10482411, 20964822]

約数ペア:

[(1, 20964822), (2, 10482411), (3, 6988274), (6, 3494137), (23, 911514), (43, 487554), (46, 455757), (69, 303838), (86, 243777), (129, 162518), (138, 151919), (258, 81259), (989, 21198), (1978, 10599), (2967, 7066), (3533, 5934)]