42220409

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{7121}}^1$

素因数の和:7157

約数の個数: 18

約数和(自身を含む): 53991882

約数和(自身を除く): 11771473

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 5929, 7121, 49847, 78331, 348929, 548317, 861641, 3838219, 6031487, 42220409]

約数ペア:

[(1, 42220409), (7, 6031487), (11, 3838219), (49, 861641), (77, 548317), (121, 348929), (539, 78331), (847, 49847), (5929, 7121)]