216813.0000000

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4943}}^1$

素因数の和:5025

約数の個数: 24

約数和(自身を含む): 19934208

約数和(自身を除く): 10107524

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 4943, 9886, 19772, 34601, 69202, 138404, 350953, 701906, 1403812, 2456671, 4913342, 9826684]

約数ペア:

[(1, 9826684), (2, 4913342), (4, 2456671), (7, 1403812), (14, 701906), (28, 350953), (71, 138404), (142, 69202), (284, 34601), (497, 19772), (994, 9886), (1988, 4943)]