21725385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{373}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 38130048

約数和(自身を除く): 16404663

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 353, 373, 1059, 1119, 1765, 1865, 3883, 4103, 5295, 5595, 11649, 12309, 19415, 20515, 58245, 61545, 131669, 395007, 658345, 1448359, 1975035, 4345077, 7241795, 21725385]

約数ペア:

[(1, 21725385), (3, 7241795), (5, 4345077), (11, 1975035), (15, 1448359), (33, 658345), (55, 395007), (165, 131669), (353, 61545), (373, 58245), (1059, 20515), (1119, 19415), (1765, 12309), (1865, 11649), (3883, 5595), (4103, 5295)]