81130644

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{321947}}^1$

素因数の和:321964

約数の個数: 36

約数和(自身を含む): 234378144

約数和(自身を除く): 153247500

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 321947, 643894, 965841, 1287788, 1931682, 2253629, 2897523, 3863364, 4507258, 5795046, 6760887, 9014516, 11590092, 13521774, 20282661, 27043548, 40565322, 81130644]

約数ペア:

[(1, 81130644), (2, 40565322), (3, 27043548), (4, 20282661), (6, 13521774), (7, 11590092), (9, 9014516), (12, 6760887), (14, 5795046), (18, 4507258), (21, 3863364), (28, 2897523), (36, 2253629), (42, 1931682), (63, 1287788), (84, 965841), (126, 643894), (252, 321947)]