20206918

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{827}}^1$

素因数の和:1491

約数の個数: 16

約数和(自身を含む): 31993920

約数和(自身を除く): 11787002

約数列:

[1, 2, 19, 38, 643, 827, 1286, 1654, 12217, 15713, 24434, 31426, 531761, 1063522, 10103459, 20206918]

約数ペア:

[(1, 20206918), (2, 10103459), (19, 1063522), (38, 531761), (643, 31426), (827, 24434), (1286, 15713), (1654, 12217)]