21442764

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{643}}^1$

素因数の和:1054

約数の個数: 48

約数和(自身を含む): 57413888

約数和(自身を除く): 35971124

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 397, 643, 794, 1191, 1286, 1588, 1929, 2382, 2572, 2779, 3858, 4501, 4764, 5558, 7716, 8337, 9002, 11116, 13503, 16674, 18004, 27006, 33348, 54012, 255271, 510542, 765813, 1021084, 1531626, 1786897, 3063252, 3573794, 5360691, 7147588, 10721382, 21442764]

約数ペア:

[(1, 21442764), (2, 10721382), (3, 7147588), (4, 5360691), (6, 3573794), (7, 3063252), (12, 1786897), (14, 1531626), (21, 1021084), (28, 765813), (42, 510542), (84, 255271), (397, 54012), (643, 33348), (794, 27006), (1191, 18004), (1286, 16674), (1588, 13503), (1929, 11116), (2382, 9002), (2572, 8337), (2779, 7716), (3858, 5558), (4501, 4764)]