21347183

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 25963728

約数和(自身を除く): 4616545

約数列:

[1, 11, 13, 41, 121, 143, 331, 451, 533, 1573, 3641, 4303, 4961, 5863, 13571, 40051, 47333, 64493, 149281, 176423, 520663, 1642091, 1940653, 21347183]

約数ペア:

[(1, 21347183), (11, 1940653), (13, 1642091), (41, 520663), (121, 176423), (143, 149281), (331, 64493), (451, 47333), (533, 40051), (1573, 13571), (3641, 5863), (4303, 4961)]