21135543

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2593}}^1$

素因数の和:2639

約数の個数: 32

約数和(自身を含む): 34863360

約数和(自身を除く): 13727817

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 2593, 2717, 7779, 8151, 28523, 33709, 49267, 85569, 101127, 147801, 370799, 541937, 640471, 1112397, 1625811, 1921413, 7045181, 21135543]

約数ペア:

[(1, 21135543), (3, 7045181), (11, 1921413), (13, 1625811), (19, 1112397), (33, 640471), (39, 541937), (57, 370799), (143, 147801), (209, 101127), (247, 85569), (429, 49267), (627, 33709), (741, 28523), (2593, 8151), (2717, 7779)]