278714007

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1951}}^1$

素因数の和:2021

約数の個数: 64

約数和(自身を含む): 498462720

約数和(自身を除く): 219748713

約数列:

[1, 3, 9, 11, 13, 27, 33, 37, 39, 99, 111, 117, 143, 297, 333, 351, 407, 429, 481, 999, 1221, 1287, 1443, 1951, 3663, 3861, 4329, 5291, 5853, 10989, 12987, 15873, 17559, 21461, 25363, 47619, 52677, 64383, 72187, 76089, 142857, 193149, 216561, 228267, 278993, 579447, 649683, 684801, 794057, 836979, 938431, 1949049, 2382171, 2510937, 2815293, 7146513, 7532811, 8445879, 10322741, 21439539, 25337637, 30968223, 92904669, 278714007]

約数ペア:

[(1, 278714007), (3, 92904669), (9, 30968223), (11, 25337637), (13, 21439539), (27, 10322741), (33, 8445879), (37, 7532811), (39, 7146513), (99, 2815293), (111, 2510937), (117, 2382171), (143, 1949049), (297, 938431), (333, 836979), (351, 794057), (407, 684801), (429, 649683), (481, 579447), (999, 278993), (1221, 228267), (1287, 216561), (1443, 193149), (1951, 142857), (3663, 76089), (3861, 72187), (4329, 64383), (5291, 52677), (5853, 47619), (10989, 25363), (12987, 21461), (15873, 17559)]