18816105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1481}}^1$

素因数の和:1518

約数の個数: 48

約数和(自身を含む): 37844352

約数和(自身を除く): 19028247

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 121, 165, 231, 363, 385, 605, 847, 1155, 1481, 1815, 2541, 4235, 4443, 7405, 10367, 12705, 16291, 22215, 31101, 48873, 51835, 81455, 114037, 155505, 179201, 244365, 342111, 537603, 570185, 896005, 1254407, 1710555, 2688015, 3763221, 6272035, 18816105]

約数ペア:

[(1, 18816105), (3, 6272035), (5, 3763221), (7, 2688015), (11, 1710555), (15, 1254407), (21, 896005), (33, 570185), (35, 537603), (55, 342111), (77, 244365), (105, 179201), (121, 155505), (165, 114037), (231, 81455), (363, 51835), (385, 48873), (605, 31101), (847, 22215), (1155, 16291), (1481, 12705), (1815, 10367), (2541, 7405), (4235, 4443)]