21906010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{312943}}^1$

素因数の和:312957

約数の個数: 16

約数和(自身を含む): 45063936

約数和(自身を除く): 23157926

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 312943, 625886, 1564715, 2190601, 3129430, 4381202, 10953005, 21906010]

約数ペア:

[(1, 21906010), (2, 10953005), (5, 4381202), (7, 3129430), (10, 2190601), (14, 1564715), (35, 625886), (70, 312943)]