20642545

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53617}}^1$

素因数の和:53640

約数の個数: 16

約数和(自身を含む): 30883968

約数和(自身を除く): 10241423

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53617, 268085, 375319, 589787, 1876595, 2948935, 4128509, 20642545]

約数ペア:

[(1, 20642545), (5, 4128509), (7, 2948935), (11, 1876595), (35, 589787), (55, 375319), (77, 268085), (385, 53617)]