20756841

素因数分解:

$3^1\times 7^2\times {\mathrm{337}}^1\times {\mathrm{419}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 32366880

約数和(自身を除く): 11610039

約数列:

[1, 3, 7, 21, 49, 147, 337, 419, 1011, 1257, 2359, 2933, 7077, 8799, 16513, 20531, 49539, 61593, 141203, 423609, 988421, 2965263, 6918947, 20756841]

約数ペア:

[(1, 20756841), (3, 6918947), (7, 2965263), (21, 988421), (49, 423609), (147, 141203), (337, 61593), (419, 49539), (1011, 20531), (1257, 16513), (2359, 8799), (2933, 7077)]