21807534

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{519227}}^1$

素因数の和:519239

約数の個数: 16

約数和(自身を含む): 49845888

約数和(自身を除く): 28038354

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 519227, 1038454, 1557681, 3115362, 3634589, 7269178, 10903767, 21807534]

約数ペア:

[(1, 21807534), (2, 10903767), (3, 7269178), (6, 3634589), (7, 3115362), (14, 1557681), (21, 1038454), (42, 519227)]