21028794

素因数分解:

$2^1\times 3^1\times {\mathrm{647}}^1\times {\mathrm{5417}}^1$

素因数の和:6069

約数の個数: 16

約数和(自身を含む): 42130368

約数和(自身を除く): 21101574

約数列:

[1, 2, 3, 6, 647, 1294, 1941, 3882, 5417, 10834, 16251, 32502, 3504799, 7009598, 10514397, 21028794]

約数ペア:

[(1, 21028794), (2, 10514397), (3, 7009598), (6, 3504799), (647, 32502), (1294, 16251), (1941, 10834), (3882, 5417)]