19828984

素因数分解:

$2^3\times 7^1\times {\mathrm{317}}^1\times {\mathrm{1117}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 42662880

約数和(自身を除く): 22833896

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 317, 634, 1117, 1268, 2219, 2234, 2536, 4438, 4468, 7819, 8876, 8936, 15638, 17752, 31276, 62552, 354089, 708178, 1416356, 2478623, 2832712, 4957246, 9914492, 19828984]

約数ペア:

[(1, 19828984), (2, 9914492), (4, 4957246), (7, 2832712), (8, 2478623), (14, 1416356), (28, 708178), (56, 354089), (317, 62552), (634, 31276), (1117, 17752), (1268, 15638), (2219, 8936), (2234, 8876), (2536, 7819), (4438, 4468)]