28281123

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 45460800

約数和(自身を除く): 17179677

約数列:

[1, 3, 9, 13, 27, 39, 117, 197, 351, 409, 591, 1227, 1773, 2561, 3681, 5317, 5319, 7683, 11043, 15951, 23049, 47853, 69147, 80573, 143559, 241719, 725157, 1047449, 2175471, 3142347, 9427041, 28281123]

約数ペア:

[(1, 28281123), (3, 9427041), (9, 3142347), (13, 2175471), (27, 1047449), (39, 725157), (117, 241719), (197, 143559), (351, 80573), (409, 69147), (591, 47853), (1227, 23049), (1773, 15951), (2561, 11043), (3681, 7683), (5317, 5319)]