21172984

素因数分解:

$2^3\times 7^1\times {\mathrm{378089}}^1$

素因数の和:378102

約数の個数: 16

約数和(自身を含む): 45370800

約数和(自身を除く): 24197816

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 378089, 756178, 1512356, 2646623, 3024712, 5293246, 10586492, 21172984]

約数ペア:

[(1, 21172984), (2, 10586492), (4, 5293246), (7, 3024712), (8, 2646623), (14, 1512356), (28, 756178), (56, 378089)]