21553866

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:184

約数の個数: 72

約数和(自身を含む): 51352704

約数和(自身を除く): 29798838

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 57, 62, 93, 107, 114, 171, 186, 214, 279, 321, 342, 361, 558, 589, 642, 722, 963, 1083, 1178, 1767, 1926, 2033, 2166, 3249, 3317, 3534, 4066, 5301, 6099, 6498, 6634, 9951, 10602, 11191, 12198, 18297, 19902, 22382, 29853, 33573, 36594, 38627, 59706, 63023, 67146, 77254, 100719, 115881, 126046, 189069, 201438, 231762, 347643, 378138, 567207, 695286, 1134414, 1197437, 2394874, 3592311, 7184622, 10776933, 21553866]

約数ペア:

[(1, 21553866), (2, 10776933), (3, 7184622), (6, 3592311), (9, 2394874), (18, 1197437), (19, 1134414), (31, 695286), (38, 567207), (57, 378138), (62, 347643), (93, 231762), (107, 201438), (114, 189069), (171, 126046), (186, 115881), (214, 100719), (279, 77254), (321, 67146), (342, 63023), (361, 59706), (558, 38627), (589, 36594), (642, 33573), (722, 29853), (963, 22382), (1083, 19902), (1178, 18297), (1767, 12198), (1926, 11191), (2033, 10602), (2166, 9951), (3249, 6634), (3317, 6498), (3534, 6099), (4066, 5301)]