1971778518

素因数分解:

$2^1\times 3^3\times {\mathrm{61}}^1\times {\mathrm{277}}^1\times {\mathrm{2161}}^1$

素因数の和:2510

約数の個数: 64

約数和(自身を含む): 4471707840

約数和(自身を除く): 2499929322

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 122, 183, 277, 366, 549, 554, 831, 1098, 1647, 1662, 2161, 2493, 3294, 4322, 4986, 6483, 7479, 12966, 14958, 16897, 19449, 33794, 38898, 50691, 58347, 101382, 116694, 131821, 152073, 263642, 304146, 395463, 456219, 598597, 790926, 912438, 1186389, 1197194, 1795791, 2372778, 3559167, 3591582, 5387373, 7118334, 10774746, 16162119, 32324238, 36514417, 73028834, 109543251, 219086502, 328629753, 657259506, 985889259, 1971778518]

約数ペア:

[(1, 1971778518), (2, 985889259), (3, 657259506), (6, 328629753), (9, 219086502), (18, 109543251), (27, 73028834), (54, 36514417), (61, 32324238), (122, 16162119), (183, 10774746), (277, 7118334), (366, 5387373), (549, 3591582), (554, 3559167), (831, 2372778), (1098, 1795791), (1647, 1197194), (1662, 1186389), (2161, 912438), (2493, 790926), (3294, 598597), (4322, 456219), (4986, 395463), (6483, 304146), (7479, 263642), (12966, 152073), (14958, 131821), (16897, 116694), (19449, 101382), (33794, 58347), (38898, 50691)]