21060304

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18539}}^1$

素因数の和:18618

約数の個数: 20

約数和(自身を含む): 41381280

約数和(自身を除く): 20320976

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18539, 37078, 74156, 148312, 296624, 1316269, 2632538, 5265076, 10530152, 21060304]

約数ペア:

[(1, 21060304), (2, 10530152), (4, 5265076), (8, 2632538), (16, 1316269), (71, 296624), (142, 148312), (284, 74156), (568, 37078), (1136, 18539)]