20629868

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19913}}^1$

素因数の和:19961

約数の個数: 24

約数和(自身を含む): 42376992

約数和(自身を除く): 21747124

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19913, 39826, 79652, 139391, 278782, 557564, 736781, 1473562, 2947124, 5157467, 10314934, 20629868]

約数ペア:

[(1, 20629868), (2, 10314934), (4, 5157467), (7, 2947124), (14, 1473562), (28, 736781), (37, 557564), (74, 278782), (148, 139391), (259, 79652), (518, 39826), (1036, 19913)]