21131935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 29719872

約数和(自身を除く): 8587937

約数列:

[1, 5, 11, 17, 55, 85, 97, 187, 233, 485, 935, 1067, 1165, 1649, 2563, 3961, 5335, 8245, 12815, 18139, 19805, 22601, 43571, 90695, 113005, 217855, 248611, 384217, 1243055, 1921085, 4226387, 21131935]

約数ペア:

[(1, 21131935), (5, 4226387), (11, 1921085), (17, 1243055), (55, 384217), (85, 248611), (97, 217855), (187, 113005), (233, 90695), (485, 43571), (935, 22601), (1067, 19805), (1165, 18139), (1649, 12815), (2563, 8245), (3961, 5335)]