21000446984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{607}}^1$

素因数の和:931

約数の個数: 128

約数和(自身を含む): 45302906880

約数和(自身を除く): 24302459896

約数列:

[1, 2, 4, 8, 11, 22, 41, 43, 44, 82, 86, 88, 164, 172, 223, 328, 344, 446, 451, 473, 607, 892, 902, 946, 1214, 1763, 1784, 1804, 1892, 2428, 2453, 3526, 3608, 3784, 4856, 4906, 6677, 7052, 9143, 9589, 9812, 13354, 14104, 18286, 19178, 19393, 19624, 24887, 26101, 26708, 36572, 38356, 38786, 49774, 52202, 53416, 73144, 76712, 77572, 99548, 100573, 104404, 105479, 135361, 155144, 199096, 201146, 208808, 210958, 270722, 273757, 287111, 393149, 402292, 421916, 541444, 547514, 574222, 786298, 804584, 843832, 1070141, 1082888, 1095028, 1148444, 1488971, 1572596, 2140282, 2190056, 2296888, 2977942, 3145192, 4280564, 4324639, 5549801, 5820523, 5955884, 8561128, 8649278, 11099602, 11641046, 11771551, 11911768, 17298556, 22199204, 23282092, 23543102, 34597112, 44398408, 46564184, 47086204, 61047811, 64025753, 94172408, 122095622, 128051506, 238641443, 244191244, 256103012, 477282886, 488382488, 512206024, 954565772, 1909131544, 2625055873, 5250111746, 10500223492, 21000446984]

約数ペア:

[(1, 21000446984), (2, 10500223492), (4, 5250111746), (8, 2625055873), (11, 1909131544), (22, 954565772), (41, 512206024), (43, 488382488), (44, 477282886), (82, 256103012), (86, 244191244), (88, 238641443), (164, 128051506), (172, 122095622), (223, 94172408), (328, 64025753), (344, 61047811), (446, 47086204), (451, 46564184), (473, 44398408), (607, 34597112), (892, 23543102), (902, 23282092), (946, 22199204), (1214, 17298556), (1763, 11911768), (1784, 11771551), (1804, 11641046), (1892, 11099602), (2428, 8649278), (2453, 8561128), (3526, 5955884), (3608, 5820523), (3784, 5549801), (4856, 4324639), (4906, 4280564), (6677, 3145192), (7052, 2977942), (9143, 2296888), (9589, 2190056), (9812, 2140282), (13354, 1572596), (14104, 1488971), (18286, 1148444), (19178, 1095028), (19393, 1082888), (19624, 1070141), (24887, 843832), (26101, 804584), (26708, 786298), (36572, 574222), (38356, 547514), (38786, 541444), (49774, 421916), (52202, 402292), (53416, 393149), (73144, 287111), (76712, 273757), (77572, 270722), (99548, 210958), (100573, 208808), (104404, 201146), (105479, 199096), (135361, 155144)]