20745049

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:169

約数の個数: 32

約数和(自身を含む): 25280640

約数和(自身を除く): 4535591

約数列:

[1, 13, 17, 37, 43, 59, 221, 481, 559, 629, 731, 767, 1003, 1591, 2183, 2537, 8177, 9503, 13039, 20683, 27047, 28379, 32981, 37111, 43129, 93869, 351611, 482443, 560677, 1220297, 1595773, 20745049]

約数ペア:

[(1, 20745049), (13, 1595773), (17, 1220297), (37, 560677), (43, 482443), (59, 351611), (221, 93869), (481, 43129), (559, 37111), (629, 32981), (731, 28379), (767, 27047), (1003, 20683), (1591, 13039), (2183, 9503), (2537, 8177)]