20456874

素因数分解:

$2^1\times 3^4\times {\mathrm{197}}^1\times {\mathrm{641}}^1$

素因数の和:852

約数の個数: 40

約数和(自身を含む): 46143108

約数和(自身を除く): 25686234

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 197, 394, 591, 641, 1182, 1282, 1773, 1923, 3546, 3846, 5319, 5769, 10638, 11538, 15957, 17307, 31914, 34614, 51921, 103842, 126277, 252554, 378831, 757662, 1136493, 2272986, 3409479, 6818958, 10228437, 20456874]

約数ペア:

[(1, 20456874), (2, 10228437), (3, 6818958), (6, 3409479), (9, 2272986), (18, 1136493), (27, 757662), (54, 378831), (81, 252554), (162, 126277), (197, 103842), (394, 51921), (591, 34614), (641, 31914), (1182, 17307), (1282, 15957), (1773, 11538), (1923, 10638), (3546, 5769), (3846, 5319)]