21511042

素因数分解:

$2^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{2137}}^1$

素因数の和:2865

約数の個数: 16

約数和(自身を含む): 36944640

約数和(自身を除く): 15433598

約数列:

[1, 2, 7, 14, 719, 1438, 2137, 4274, 5033, 10066, 14959, 29918, 1536503, 3073006, 10755521, 21511042]

約数ペア:

[(1, 21511042), (2, 10755521), (7, 3073006), (14, 1536503), (719, 29918), (1438, 14959), (2137, 10066), (4274, 5033)]