221539276

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1\times {\mathrm{761}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 457273152

約数和(自身を除く): 235733876

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 281, 518, 562, 761, 1036, 1124, 1522, 1967, 3044, 3934, 5327, 7868, 10397, 10654, 20794, 21308, 28157, 41588, 56314, 72779, 112628, 145558, 197099, 213841, 291116, 394198, 427682, 788396, 855364, 1496887, 2993774, 5987548, 7912117, 15824234, 31648468, 55384819, 110769638, 221539276]

約数ペア:

[(1, 221539276), (2, 110769638), (4, 55384819), (7, 31648468), (14, 15824234), (28, 7912117), (37, 5987548), (74, 2993774), (148, 1496887), (259, 855364), (281, 788396), (518, 427682), (562, 394198), (761, 291116), (1036, 213841), (1124, 197099), (1522, 145558), (1967, 112628), (3044, 72779), (3934, 56314), (5327, 41588), (7868, 28157), (10397, 21308), (10654, 20794)]