20337581

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 32

約数和(自身を含む): 25006080

約数和(自身を除く): 4668499

約数列:

[1, 11, 19, 31, 43, 73, 209, 341, 473, 589, 803, 817, 1333, 1387, 2263, 3139, 6479, 8987, 14663, 15257, 24893, 25327, 34529, 42997, 59641, 97309, 278597, 472967, 656051, 1070399, 1848871, 20337581]

約数ペア:

[(1, 20337581), (11, 1848871), (19, 1070399), (31, 656051), (43, 472967), (73, 278597), (209, 97309), (341, 59641), (473, 42997), (589, 34529), (803, 25327), (817, 24893), (1333, 15257), (1387, 14663), (2263, 8987), (3139, 6479)]