21342920

素因数分解:

$2^3\times 5^1\times {\mathrm{533573}}^1$

素因数の和:533584

約数の個数: 16

約数和(自身を含む): 48021660

約数和(自身を除く): 26678740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 533573, 1067146, 2134292, 2667865, 4268584, 5335730, 10671460, 21342920]

約数ペア:

[(1, 21342920), (2, 10671460), (4, 5335730), (5, 4268584), (8, 2667865), (10, 2134292), (20, 1067146), (40, 533573)]