1338778881

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{4201}}^1$

素因数の和:4287

約数の個数: 64

約数和(自身を含む): 2299334400

約数和(自身を除く): 960555519

約数列:

[1, 3, 9, 11, 27, 29, 33, 37, 87, 99, 111, 261, 297, 319, 333, 407, 783, 957, 999, 1073, 1221, 2871, 3219, 3663, 4201, 8613, 9657, 10989, 11803, 12603, 28971, 35409, 37809, 46211, 106227, 113427, 121829, 138633, 155437, 318681, 365487, 415899, 466311, 1096461, 1247697, 1340119, 1398933, 1709807, 3289383, 4020357, 4196799, 4507673, 5129421, 12061071, 13523019, 15388263, 36183213, 40569057, 46164789, 49584403, 121707171, 148753209, 446259627, 1338778881]

約数ペア:

[(1, 1338778881), (3, 446259627), (9, 148753209), (11, 121707171), (27, 49584403), (29, 46164789), (33, 40569057), (37, 36183213), (87, 15388263), (99, 13523019), (111, 12061071), (261, 5129421), (297, 4507673), (319, 4196799), (333, 4020357), (407, 3289383), (783, 1709807), (957, 1398933), (999, 1340119), (1073, 1247697), (1221, 1096461), (2871, 466311), (3219, 415899), (3663, 365487), (4201, 318681), (8613, 155437), (9657, 138633), (10989, 121829), (11803, 113427), (12603, 106227), (28971, 46211), (35409, 37809)]