21036105

素因数分解:

$3^4\times 5^1\times {\mathrm{51941}}^1$

素因数の和:51958

約数の個数: 20

約数和(自身を含む): 37709892

約数和(自身を除く): 16673787

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 51941, 155823, 259705, 467469, 779115, 1402407, 2337345, 4207221, 7012035, 21036105]

約数ペア:

[(1, 21036105), (3, 7012035), (5, 4207221), (9, 2337345), (15, 1402407), (27, 779115), (45, 467469), (81, 259705), (135, 155823), (405, 51941)]