21238077

素因数分解:

$3^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{3001}}^1$

素因数の和:3348

約数の個数: 16

約数和(自身を含む): 32469632

約数和(自身を除く): 11231555

約数列:

[1, 3, 7, 21, 337, 1011, 2359, 3001, 7077, 9003, 21007, 63021, 1011337, 3034011, 7079359, 21238077]

約数ペア:

[(1, 21238077), (3, 7079359), (7, 3034011), (21, 1011337), (337, 63021), (1011, 21007), (2359, 9003), (3001, 7077)]