18804937809

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{29537}}^1$

素因数の和:29686

約数の個数: 48

約数和(自身を含む): 30063540096

約数和(自身を除く): 11258602287

約数列:

[1, 3, 7, 21, 49, 61, 71, 147, 183, 213, 427, 497, 1281, 1491, 2989, 3479, 4331, 8967, 10437, 12993, 29537, 30317, 88611, 90951, 206759, 212219, 620277, 636657, 1447313, 1801757, 2097127, 4341939, 5405271, 6291381, 12612299, 14679889, 37836897, 44039667, 88286093, 102759223, 127924747, 264858279, 308277669, 383774241, 895473229, 2686419687, 6268312603, 18804937809]

約数ペア:

[(1, 18804937809), (3, 6268312603), (7, 2686419687), (21, 895473229), (49, 383774241), (61, 308277669), (71, 264858279), (147, 127924747), (183, 102759223), (213, 88286093), (427, 44039667), (497, 37836897), (1281, 14679889), (1491, 12612299), (2989, 6291381), (3479, 5405271), (4331, 4341939), (8967, 2097127), (10437, 1801757), (12993, 1447313), (29537, 636657), (30317, 620277), (88611, 212219), (90951, 206759)]