19827388

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2029}}^1$

素因数の和:2389

約数の個数: 24

約数和(自身を含む): 39788000

約数和(自身を除く): 19960612

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 1396, 2029, 2443, 4058, 4886, 8116, 9772, 14203, 28406, 56812, 708121, 1416242, 2832484, 4956847, 9913694, 19827388]

約数ペア:

[(1, 19827388), (2, 9913694), (4, 4956847), (7, 2832484), (14, 1416242), (28, 708121), (349, 56812), (698, 28406), (1396, 14203), (2029, 9772), (2443, 8116), (4058, 4886)]