259249851

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1987}}^1$

素因数の和:2128

約数の個数: 48

約数和(自身を含む): 454854400

約数和(自身を除く): 195604549

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 109, 133, 171, 327, 399, 763, 981, 1197, 1987, 2071, 2289, 5961, 6213, 6867, 13909, 14497, 17883, 18639, 37753, 41727, 43491, 113259, 125181, 130473, 216583, 264271, 339777, 649749, 792813, 1516081, 1949247, 2378439, 4115077, 4548243, 12345231, 13644729, 28805539, 37035693, 86416617, 259249851]

約数ペア:

[(1, 259249851), (3, 86416617), (7, 37035693), (9, 28805539), (19, 13644729), (21, 12345231), (57, 4548243), (63, 4115077), (109, 2378439), (133, 1949247), (171, 1516081), (327, 792813), (399, 649749), (763, 339777), (981, 264271), (1197, 216583), (1987, 130473), (2071, 125181), (2289, 113259), (5961, 43491), (6213, 41727), (6867, 37753), (13909, 18639), (14497, 17883)]