207978015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1980743}}^1$

素因数の和:1980758

約数の個数: 16

約数和(自身を含む): 380302848

約数和(自身を除く): 172324833

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1980743, 5942229, 9903715, 13865201, 29711145, 41595603, 69326005, 207978015]

約数ペア:

[(1, 207978015), (3, 69326005), (5, 41595603), (7, 29711145), (15, 13865201), (21, 9903715), (35, 5942229), (105, 1980743)]