21660136

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66037}}^1$

素因数の和:66084

約数の個数: 16

約数和(自身を含む): 41603940

約数和(自身を除く): 19943804

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66037, 132074, 264148, 528296, 2707517, 5415034, 10830068, 21660136]

約数ペア:

[(1, 21660136), (2, 10830068), (4, 5415034), (8, 2707517), (41, 528296), (82, 264148), (164, 132074), (328, 66037)]