21380905210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{48337}}^1$

素因数の和:48511

約数の個数: 64

約数和(自身を含む): 45105154560

約数和(自身を除く): 23724249350

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 89, 142, 178, 355, 445, 497, 623, 710, 890, 994, 1246, 2485, 3115, 4970, 6230, 6319, 12638, 31595, 44233, 48337, 63190, 88466, 96674, 221165, 241685, 338359, 442330, 483370, 676718, 1691795, 3383590, 3431927, 4301993, 6863854, 8603986, 17159635, 21509965, 24023489, 30113951, 34319270, 43019930, 48046978, 60227902, 120117445, 150569755, 240234890, 301139510, 305441503, 610883006, 1527207515, 2138090521, 3054415030, 4276181042, 10690452605, 21380905210]

約数ペア:

[(1, 21380905210), (2, 10690452605), (5, 4276181042), (7, 3054415030), (10, 2138090521), (14, 1527207515), (35, 610883006), (70, 305441503), (71, 301139510), (89, 240234890), (142, 150569755), (178, 120117445), (355, 60227902), (445, 48046978), (497, 43019930), (623, 34319270), (710, 30113951), (890, 24023489), (994, 21509965), (1246, 17159635), (2485, 8603986), (3115, 6863854), (4970, 4301993), (6230, 3431927), (6319, 3383590), (12638, 1691795), (31595, 676718), (44233, 483370), (48337, 442330), (63190, 338359), (88466, 241685), (96674, 221165)]