21807508

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2477}}^1$

素因数の和:2583

約数の個数: 24

約数和(自身を含む): 39965184

約数和(自身を除く): 18157676

約数列:

[1, 2, 4, 31, 62, 71, 124, 142, 284, 2201, 2477, 4402, 4954, 8804, 9908, 76787, 153574, 175867, 307148, 351734, 703468, 5451877, 10903754, 21807508]

約数ペア:

[(1, 21807508), (2, 10903754), (4, 5451877), (31, 703468), (62, 351734), (71, 307148), (124, 175867), (142, 153574), (284, 76787), (2201, 9908), (2477, 8804), (4402, 4954)]