21021798

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{500519}}^1$

素因数の和:500531

約数の個数: 16

約数和(自身を含む): 48049920

約数和(自身を除く): 27028122

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 500519, 1001038, 1501557, 3003114, 3503633, 7007266, 10510899, 21021798]

約数ペア:

[(1, 21021798), (2, 10510899), (3, 7007266), (6, 3503633), (7, 3003114), (14, 1501557), (21, 1001038), (42, 500519)]