25699989

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1571}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 42255360

約数和(自身を除く): 16555371

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 1571, 2337, 4713, 5453, 10997, 16359, 29849, 32991, 64411, 89547, 193233, 208943, 450877, 626829, 1223809, 1352631, 3671427, 8566663, 25699989]

約数ペア:

[(1, 25699989), (3, 8566663), (7, 3671427), (19, 1352631), (21, 1223809), (41, 626829), (57, 450877), (123, 208943), (133, 193233), (287, 89547), (399, 64411), (779, 32991), (861, 29849), (1571, 16359), (2337, 10997), (4713, 5453)]