20581668

素因数分解:

$2^2\times 3^3\times {\mathrm{149}}^1\times {\mathrm{1279}}^1$

素因数の和:1441

約数の個数: 48

約数和(自身を含む): 53760000

約数和(自身を除く): 33178332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 149, 298, 447, 596, 894, 1279, 1341, 1788, 2558, 2682, 3837, 4023, 5116, 5364, 7674, 8046, 11511, 15348, 16092, 23022, 34533, 46044, 69066, 138132, 190571, 381142, 571713, 762284, 1143426, 1715139, 2286852, 3430278, 5145417, 6860556, 10290834, 20581668]

約数ペア:

[(1, 20581668), (2, 10290834), (3, 6860556), (4, 5145417), (6, 3430278), (9, 2286852), (12, 1715139), (18, 1143426), (27, 762284), (36, 571713), (54, 381142), (108, 190571), (149, 138132), (298, 69066), (447, 46044), (596, 34533), (894, 23022), (1279, 16092), (1341, 15348), (1788, 11511), (2558, 8046), (2682, 7674), (3837, 5364), (4023, 5116)]