28206409

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1217}}^1$

素因数の和:1285

約数の個数: 24

約数和(自身を含む): 36656928

約数和(自身を除く): 8450519

約数列:

[1, 7, 11, 43, 49, 77, 301, 473, 539, 1217, 2107, 3311, 8519, 13387, 23177, 52331, 59633, 93709, 366317, 575641, 655963, 2564219, 4029487, 28206409]

約数ペア:

[(1, 28206409), (7, 4029487), (11, 2564219), (43, 655963), (49, 575641), (77, 366317), (301, 93709), (473, 59633), (539, 52331), (1217, 23177), (2107, 13387), (3311, 8519)]