21343917

素因数分解:

$3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{3617}}^1$

素因数の和:3908

約数の個数: 16

約数和(自身を含む): 32648832

約数和(自身を除く): 11304915

約数列:

[1, 3, 7, 21, 281, 843, 1967, 3617, 5901, 10851, 25319, 75957, 1016377, 3049131, 7114639, 21343917]

約数ペア:

[(1, 21343917), (3, 7114639), (7, 3049131), (21, 1016377), (281, 75957), (843, 25319), (1967, 10851), (3617, 5901)]