20097567

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2141}}^1$

素因数の和:2303

約数の個数: 24

約数和(自身を含む): 33415200

約数和(自身を除く): 13317633

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 2141, 3129, 6423, 9387, 14987, 19269, 44961, 134883, 319009, 957027, 2233063, 2871081, 6699189, 20097567]

約数ペア:

[(1, 20097567), (3, 6699189), (7, 2871081), (9, 2233063), (21, 957027), (63, 319009), (149, 134883), (447, 44961), (1043, 19269), (1341, 14987), (2141, 9387), (3129, 6423)]