25418211

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 43513344

約数和(自身を除く): 18095133

約数列:

[1, 3, 7, 13, 21, 39, 47, 49, 91, 141, 147, 273, 283, 329, 611, 637, 849, 987, 1833, 1911, 1981, 2303, 3679, 4277, 5943, 6909, 11037, 12831, 13301, 13867, 25753, 29939, 39903, 41601, 77259, 89817, 93107, 172913, 180271, 279321, 518739, 540813, 651749, 1210391, 1955247, 3631173, 8472737, 25418211]

約数ペア:

[(1, 25418211), (3, 8472737), (7, 3631173), (13, 1955247), (21, 1210391), (39, 651749), (47, 540813), (49, 518739), (91, 279321), (141, 180271), (147, 172913), (273, 93107), (283, 89817), (329, 77259), (611, 41601), (637, 39903), (849, 29939), (987, 25753), (1833, 13867), (1911, 13301), (1981, 12831), (2303, 11037), (3679, 6909), (4277, 5943)]