21000252658

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{136365277}}^1$

素因数の和:136365297

約数の個数: 16

約数和(自身を含む): 39273200064

約数和(自身を除く): 18272947406

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 136365277, 272730554, 954556939, 1500018047, 1909113878, 3000036094, 10500126329, 21000252658]

約数ペア:

[(1, 21000252658), (2, 10500126329), (7, 3000036094), (11, 1909113878), (14, 1500018047), (22, 954556939), (77, 272730554), (154, 136365277)]