21000663512

素因数分解:

$2^3\times {\mathrm{541}}^1\times {\mathrm{4852279}}^1$

素因数の和:4852826

約数の個数: 16

約数和(自身を含む): 39449036400

約数和(自身を除く): 18448372888

約数列:

[1, 2, 4, 8, 541, 1082, 2164, 4328, 4852279, 9704558, 19409116, 38818232, 2625082939, 5250165878, 10500331756, 21000663512]

約数ペア:

[(1, 21000663512), (2, 10500331756), (4, 5250165878), (8, 2625082939), (541, 38818232), (1082, 19409116), (2164, 9704558), (4328, 4852279)]