20857712

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12907}}^1$

素因数の和:13016

約数の個数: 20

約数和(自身を含む): 40815096

約数和(自身を除く): 19957384

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12907, 25814, 51628, 103256, 206512, 1303607, 2607214, 5214428, 10428856, 20857712]

約数ペア:

[(1, 20857712), (2, 10428856), (4, 5214428), (8, 2607214), (16, 1303607), (101, 206512), (202, 103256), (404, 51628), (808, 25814), (1616, 12907)]