21865508

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3701}}^1$

素因数の和:3923

約数の個数: 24

約数和(自身を含む): 43950144

約数和(自身を除く): 22084636

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 3701, 5908, 7402, 14804, 25907, 51814, 103628, 780911, 1561822, 3123644, 5466377, 10932754, 21865508]

約数ペア:

[(1, 21865508), (2, 10932754), (4, 5466377), (7, 3123644), (14, 1561822), (28, 780911), (211, 103628), (422, 51814), (844, 25907), (1477, 14804), (2954, 7402), (3701, 5908)]