20752155

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27127}}^1$

素因数の和:27155

約数の個数: 24

約数和(自身を含む): 38087712

約数和(自身を除く): 17335557

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 27127, 81381, 135635, 244143, 406905, 461159, 1220715, 1383477, 2305795, 4150431, 6917385, 20752155]

約数ペア:

[(1, 20752155), (3, 6917385), (5, 4150431), (9, 2305795), (15, 1383477), (17, 1220715), (45, 461159), (51, 406905), (85, 244143), (153, 135635), (255, 81381), (765, 27127)]