20212456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 44712000

約数和(自身を除く): 24499544

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 59, 68, 88, 118, 136, 187, 229, 236, 374, 458, 472, 649, 748, 916, 1003, 1298, 1496, 1832, 2006, 2519, 2596, 3893, 4012, 5038, 5192, 7786, 8024, 10076, 11033, 13511, 15572, 20152, 22066, 27022, 31144, 42823, 44132, 54044, 85646, 88264, 108088, 148621, 171292, 229687, 297242, 342584, 459374, 594484, 918748, 1188968, 1837496, 2526557, 5053114, 10106228, 20212456]

約数ペア:

[(1, 20212456), (2, 10106228), (4, 5053114), (8, 2526557), (11, 1837496), (17, 1188968), (22, 918748), (34, 594484), (44, 459374), (59, 342584), (68, 297242), (88, 229687), (118, 171292), (136, 148621), (187, 108088), (229, 88264), (236, 85646), (374, 54044), (458, 44132), (472, 42823), (649, 31144), (748, 27022), (916, 22066), (1003, 20152), (1298, 15572), (1496, 13511), (1832, 11033), (2006, 10076), (2519, 8024), (2596, 7786), (3893, 5192), (4012, 5038)]