21281144

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{937}}^1$

素因数の和:1127

約数の個数: 32

約数和(自身を含む): 42547680

約数和(自身を除く): 21266536

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 167, 334, 668, 937, 1336, 1874, 2839, 3748, 5678, 7496, 11356, 15929, 22712, 31858, 63716, 127432, 156479, 312958, 625916, 1251832, 2660143, 5320286, 10640572, 21281144]

約数ペア:

[(1, 21281144), (2, 10640572), (4, 5320286), (8, 2660143), (17, 1251832), (34, 625916), (68, 312958), (136, 156479), (167, 127432), (334, 63716), (668, 31858), (937, 22712), (1336, 15929), (1874, 11356), (2839, 7496), (3748, 5678)]