28308553

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{631}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 9914807

約数列:

[1, 7, 13, 17, 29, 91, 119, 203, 221, 377, 493, 631, 1547, 2639, 3451, 4417, 6409, 8203, 10727, 18299, 44863, 57421, 75089, 128093, 139451, 237887, 311083, 976157, 1665209, 2177581, 4044079, 28308553]

約数ペア:

[(1, 28308553), (7, 4044079), (13, 2177581), (17, 1665209), (29, 976157), (91, 311083), (119, 237887), (203, 139451), (221, 128093), (377, 75089), (493, 57421), (631, 44863), (1547, 18299), (2639, 10727), (3451, 8203), (4417, 6409)]