21496578070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1987}}^1\times {\mathrm{8941}}^1$

素因数の和:10957

約数の個数: 48

約数和(自身を含む): 42557410224

約数和(自身を除く): 21060832154

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 1987, 3974, 8941, 9935, 17882, 19870, 21857, 43714, 44705, 89410, 98351, 109285, 196702, 218570, 240427, 480854, 491755, 983510, 1081861, 1202135, 2163722, 2404270, 5409305, 10818610, 17765767, 35531534, 88828835, 177657670, 195423437, 390846874, 977117185, 1954234370, 2149657807, 4299315614, 10748289035, 21496578070]

約数ペア:

[(1, 21496578070), (2, 10748289035), (5, 4299315614), (10, 2149657807), (11, 1954234370), (22, 977117185), (55, 390846874), (110, 195423437), (121, 177657670), (242, 88828835), (605, 35531534), (1210, 17765767), (1987, 10818610), (3974, 5409305), (8941, 2404270), (9935, 2163722), (17882, 1202135), (19870, 1081861), (21857, 983510), (43714, 491755), (44705, 480854), (89410, 240427), (98351, 218570), (109285, 196702)]