21251004

素因数分解:

$2^2\times 3^1\times {\mathrm{991}}^1\times {\mathrm{1787}}^1$

素因数の和:2785

約数の個数: 24

約数和(自身を含む): 49663488

約数和(自身を除く): 28412484

約数列:

[1, 2, 3, 4, 6, 12, 991, 1787, 1982, 2973, 3574, 3964, 5361, 5946, 7148, 10722, 11892, 21444, 1770917, 3541834, 5312751, 7083668, 10625502, 21251004]

約数ペア:

[(1, 21251004), (2, 10625502), (3, 7083668), (4, 5312751), (6, 3541834), (12, 1770917), (991, 21444), (1787, 11892), (1982, 10722), (2973, 7148), (3574, 5946), (3964, 5361)]