25919439

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{263}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 45061632

約数和(自身を除く): 19142193

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 263, 273, 361, 399, 741, 789, 1083, 1729, 1841, 2527, 3419, 4693, 4997, 5187, 5523, 7581, 10257, 14079, 14991, 23933, 32851, 34979, 64961, 71799, 94943, 98553, 104937, 194883, 284829, 454727, 664601, 1234259, 1364181, 1993803, 3702777, 8639813, 25919439]

約数ペア:

[(1, 25919439), (3, 8639813), (7, 3702777), (13, 1993803), (19, 1364181), (21, 1234259), (39, 664601), (57, 454727), (91, 284829), (133, 194883), (247, 104937), (263, 98553), (273, 94943), (361, 71799), (399, 64961), (741, 34979), (789, 32851), (1083, 23933), (1729, 14991), (1841, 14079), (2527, 10257), (3419, 7581), (4693, 5523), (4997, 5187)]