20798085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1637}}^1$

素因数の和:1674

約数の個数: 48

約数和(自身を含む): 41827968

約数和(自身を除く): 21029883

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 121, 165, 231, 363, 385, 605, 847, 1155, 1637, 1815, 2541, 4235, 4911, 8185, 11459, 12705, 18007, 24555, 34377, 54021, 57295, 90035, 126049, 171885, 198077, 270105, 378147, 594231, 630245, 990385, 1386539, 1890735, 2971155, 4159617, 6932695, 20798085]

約数ペア:

[(1, 20798085), (3, 6932695), (5, 4159617), (7, 2971155), (11, 1890735), (15, 1386539), (21, 990385), (33, 630245), (35, 594231), (55, 378147), (77, 270105), (105, 198077), (121, 171885), (165, 126049), (231, 90035), (363, 57295), (385, 54021), (605, 34377), (847, 24555), (1155, 18007), (1637, 12705), (1815, 11459), (2541, 8185), (4235, 4911)]