20675402881

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2129509}}^1$

素因数の和:2129608

約数の個数: 16

約数和(自身を含む): 25213398400

約数和(自身を除く): 4537995519

約数列:

[1, 7, 19, 73, 133, 511, 1387, 9709, 2129509, 14906563, 40460671, 155454157, 283224697, 1088179099, 2953628983, 20675402881]

約数ペア:

[(1, 20675402881), (7, 2953628983), (19, 1088179099), (73, 283224697), (133, 155454157), (511, 40460671), (1387, 14906563), (9709, 2129509)]