21037636

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{857}}^1$

素因数の和:916

約数の個数: 36

約数和(自身を含む): 41189148

約数和(自身を除く): 20151512

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 361, 646, 722, 857, 1292, 1444, 1714, 3428, 6137, 12274, 14569, 16283, 24548, 29138, 32566, 58276, 65132, 276811, 309377, 553622, 618754, 1107244, 1237508, 5259409, 10518818, 21037636]

約数ペア:

[(1, 21037636), (2, 10518818), (4, 5259409), (17, 1237508), (19, 1107244), (34, 618754), (38, 553622), (68, 309377), (76, 276811), (323, 65132), (361, 58276), (646, 32566), (722, 29138), (857, 24548), (1292, 16283), (1444, 14569), (1714, 12274), (3428, 6137)]