21430280

素因数分解:

$2^3\times 5^1\times {\mathrm{535757}}^1$

素因数の和:535768

約数の個数: 16

約数和(自身を含む): 48218220

約数和(自身を除く): 26787940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 535757, 1071514, 2143028, 2678785, 4286056, 5357570, 10715140, 21430280]

約数ペア:

[(1, 21430280), (2, 10715140), (4, 5357570), (5, 4286056), (8, 2678785), (10, 2143028), (20, 1071514), (40, 535757)]