18986072

素因数分解:

$2^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1721}}^1$

素因数の和:1931

約数の個数: 32

約数和(自身を含む): 40914720

約数和(自身を除く): 21928648

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 197, 394, 788, 1379, 1576, 1721, 2758, 3442, 5516, 6884, 11032, 12047, 13768, 24094, 48188, 96376, 339037, 678074, 1356148, 2373259, 2712296, 4746518, 9493036, 18986072]

約数ペア:

[(1, 18986072), (2, 9493036), (4, 4746518), (7, 2712296), (8, 2373259), (14, 1356148), (28, 678074), (56, 339037), (197, 96376), (394, 48188), (788, 24094), (1379, 13768), (1576, 12047), (1721, 11032), (2758, 6884), (3442, 5516)]