21830185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 30068640

約数和(自身を除く): 8238455

約数列:

[1, 5, 13, 29, 37, 65, 145, 185, 313, 377, 481, 1073, 1565, 1885, 2405, 4069, 5365, 9077, 11581, 13949, 20345, 45385, 57905, 69745, 118001, 150553, 335849, 590005, 752765, 1679245, 4366037, 21830185]

約数ペア:

[(1, 21830185), (5, 4366037), (13, 1679245), (29, 752765), (37, 590005), (65, 335849), (145, 150553), (185, 118001), (313, 69745), (377, 57905), (481, 45385), (1073, 20345), (1565, 13949), (1885, 11581), (2405, 9077), (4069, 5365)]