18856564

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{709}}^1$

素因数の和:883

約数の個数: 24

約数和(自身を含む): 33895400

約数和(自身を除く): 15038836

約数列:

[1, 2, 4, 61, 109, 122, 218, 244, 436, 709, 1418, 2836, 6649, 13298, 26596, 43249, 77281, 86498, 154562, 172996, 309124, 4714141, 9428282, 18856564]

約数ペア:

[(1, 18856564), (2, 9428282), (4, 4714141), (61, 309124), (109, 172996), (122, 154562), (218, 86498), (244, 77281), (436, 43249), (709, 26596), (1418, 13298), (2836, 6649)]