21497343

素因数分解:

$3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{3643}}^1$

素因数の和:3934

約数の個数: 16

約数和(自身を含む): 32883456

約数和(自身を除く): 11386113

約数列:

[1, 3, 7, 21, 281, 843, 1967, 3643, 5901, 10929, 25501, 76503, 1023683, 3071049, 7165781, 21497343]

約数ペア:

[(1, 21497343), (3, 7165781), (7, 3071049), (21, 1023683), (281, 76503), (843, 25501), (1967, 10929), (3643, 5901)]