21125403138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{502985789}}^1$

素因数の和:502985801

約数の個数: 16

約数和(自身を含む): 48286635840

約数和(自身を除く): 27161232702

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 502985789, 1005971578, 1508957367, 3017914734, 3520900523, 7041801046, 10562701569, 21125403138]

約数ペア:

[(1, 21125403138), (2, 10562701569), (3, 7041801046), (6, 3520900523), (7, 3017914734), (14, 1508957367), (21, 1005971578), (42, 502985789)]