19689439

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6911}}^1$

素因数の和:6966

約数の個数: 16

約数和(自身を含む): 25214976

約数和(自身を除く): 5525537

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 6911, 48377, 76021, 255707, 532147, 1789949, 2812777, 19689439]

約数ペア:

[(1, 19689439), (7, 2812777), (11, 1789949), (37, 532147), (77, 255707), (259, 76021), (407, 48377), (2849, 6911)]