20801284

素因数分解:

$2^2\times 7^2\times {\mathrm{106129}}^1$

素因数の和:106147

約数の個数: 18

約数和(自身を含む): 42345870

約数和(自身を除く): 21544586

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 106129, 212258, 424516, 742903, 1485806, 2971612, 5200321, 10400642, 20801284]

約数ペア:

[(1, 20801284), (2, 10400642), (4, 5200321), (7, 2971612), (14, 1485806), (28, 742903), (49, 424516), (98, 212258), (196, 106129)]