25105821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2045

約数の個数: 32

約数和(自身を含む): 40199040

約数和(自身を除く): 15093219

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 1993, 4199, 5979, 12597, 25909, 33881, 37867, 77727, 101643, 113601, 440453, 492271, 643739, 1321359, 1476813, 1931217, 8368607, 25105821]

約数ペア:

[(1, 25105821), (3, 8368607), (13, 1931217), (17, 1476813), (19, 1321359), (39, 643739), (51, 492271), (57, 440453), (221, 113601), (247, 101643), (323, 77727), (663, 37867), (741, 33881), (969, 25909), (1993, 12597), (4199, 5979)]