20994883

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1433}}^1$

素因数の和:1483

約数の個数: 24

約数和(自身を含む): 27463968

約数和(自身を除く): 6469085

約数列:

[1, 7, 13, 23, 49, 91, 161, 299, 637, 1127, 1433, 2093, 10031, 14651, 18629, 32959, 70217, 130403, 230713, 428467, 912821, 1614991, 2999269, 20994883]

約数ペア:

[(1, 20994883), (7, 2999269), (13, 1614991), (23, 912821), (49, 428467), (91, 230713), (161, 130403), (299, 70217), (637, 32959), (1127, 18629), (1433, 14651), (2093, 10031)]