18988312

素因数分解:

$2^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1607}}^1$

素因数の和:1831

約数の個数: 32

約数和(自身を含む): 40907520

約数和(自身を除く): 21919208

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 211, 422, 844, 1477, 1607, 1688, 2954, 3214, 5908, 6428, 11249, 11816, 12856, 22498, 44996, 89992, 339077, 678154, 1356308, 2373539, 2712616, 4747078, 9494156, 18988312]

約数ペア:

[(1, 18988312), (2, 9494156), (4, 4747078), (7, 2712616), (8, 2373539), (14, 1356308), (28, 678154), (56, 339077), (211, 89992), (422, 44996), (844, 22498), (1477, 12856), (1607, 11816), (1688, 11249), (2954, 6428), (3214, 5908)]