28756905

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{12211}}^1$

素因数の和:12376

約数の個数: 16

約数和(自身を含む): 46307904

約数和(自身を除く): 17550999

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 12211, 36633, 61055, 183165, 1917127, 5751381, 9585635, 28756905]

約数ペア:

[(1, 28756905), (3, 9585635), (5, 5751381), (15, 1917127), (157, 183165), (471, 61055), (785, 36633), (2355, 12211)]