20856496

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11959}}^1$

素因数の和:12076

約数の個数: 20

約数和(自身を含む): 40783600

約数和(自身を除く): 19927104

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11959, 23918, 47836, 95672, 191344, 1303531, 2607062, 5214124, 10428248, 20856496]

約数ペア:

[(1, 20856496), (2, 10428248), (4, 5214124), (8, 2607062), (16, 1303531), (109, 191344), (218, 95672), (436, 47836), (872, 23918), (1744, 11959)]