25306281

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 50022336

約数和(自身を除く): 24716055

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 53, 63, 77, 91, 99, 117, 143, 159, 231, 273, 371, 429, 477, 583, 689, 693, 819, 1001, 1113, 1287, 1749, 2067, 2809, 3003, 3339, 4081, 4823, 5247, 6201, 7579, 8427, 9009, 12243, 14469, 19663, 22737, 25281, 30899, 36517, 36729, 43407, 53053, 58989, 68211, 92697, 109551, 159159, 176967, 216293, 255619, 278091, 328653, 401687, 477477, 648879, 766857, 1205061, 1946637, 2300571, 2811809, 3615183, 8435427, 25306281]

約数ペア:

[(1, 25306281), (3, 8435427), (7, 3615183), (9, 2811809), (11, 2300571), (13, 1946637), (21, 1205061), (33, 766857), (39, 648879), (53, 477477), (63, 401687), (77, 328653), (91, 278091), (99, 255619), (117, 216293), (143, 176967), (159, 159159), (231, 109551), (273, 92697), (371, 68211), (429, 58989), (477, 53053), (583, 43407), (689, 36729), (693, 36517), (819, 30899), (1001, 25281), (1113, 22737), (1287, 19663), (1749, 14469), (2067, 12243), (2809, 9009), (3003, 8427), (3339, 7579), (4081, 6201), (4823, 5247)]