20365359

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1187}}^1$

素因数の和:1259

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13088721

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 1187, 2451, 3561, 5719, 8309, 17157, 22553, 24927, 51041, 67659, 153123, 157871, 357287, 473613, 969779, 1071861, 2909337, 6788453, 20365359]

約数ペア:

[(1, 20365359), (3, 6788453), (7, 2909337), (19, 1071861), (21, 969779), (43, 473613), (57, 357287), (129, 157871), (133, 153123), (301, 67659), (399, 51041), (817, 24927), (903, 22553), (1187, 17157), (2451, 8309), (3561, 5719)]