28496979

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{179}}^1$

素因数の和:237

約数の個数: 54

約数和(自身を含む): 50817780

約数和(自身を除く): 22320801

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 179, 361, 399, 441, 537, 931, 1083, 1197, 1253, 1611, 2527, 2793, 3249, 3401, 3759, 7581, 8379, 8771, 10203, 11277, 17689, 22743, 23807, 26313, 30609, 53067, 64619, 71421, 78939, 159201, 166649, 193857, 214263, 452333, 499947, 581571, 1356999, 1499841, 3166331, 4070997, 9498993, 28496979]

約数ペア:

[(1, 28496979), (3, 9498993), (7, 4070997), (9, 3166331), (19, 1499841), (21, 1356999), (49, 581571), (57, 499947), (63, 452333), (133, 214263), (147, 193857), (171, 166649), (179, 159201), (361, 78939), (399, 71421), (441, 64619), (537, 53067), (931, 30609), (1083, 26313), (1197, 23807), (1253, 22743), (1611, 17689), (2527, 11277), (2793, 10203), (3249, 8771), (3401, 8379), (3759, 7581)]