20720934

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{9839}}^1$

素因数の和:9866

約数の個数: 40

約数和(自身を含む): 50006880

約数和(自身を除く): 29285946

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 9839, 19678, 29517, 59034, 88551, 127907, 177102, 255814, 265653, 383721, 531306, 767442, 796959, 1151163, 1593918, 2302326, 3453489, 6906978, 10360467, 20720934]

約数ペア:

[(1, 20720934), (2, 10360467), (3, 6906978), (6, 3453489), (9, 2302326), (13, 1593918), (18, 1151163), (26, 796959), (27, 767442), (39, 531306), (54, 383721), (78, 265653), (81, 255814), (117, 177102), (162, 127907), (234, 88551), (351, 59034), (702, 29517), (1053, 19678), (2106, 9839)]