20527899

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 32440320

約数和(自身を除く): 11912421

約数列:

[1, 3, 7, 21, 43, 127, 129, 179, 301, 381, 537, 889, 903, 1253, 2667, 3759, 5461, 7697, 16383, 22733, 23091, 38227, 53879, 68199, 114681, 159131, 161637, 477393, 977519, 2932557, 6842633, 20527899]

約数ペア:

[(1, 20527899), (3, 6842633), (7, 2932557), (21, 977519), (43, 477393), (127, 161637), (129, 159131), (179, 114681), (301, 68199), (381, 53879), (537, 38227), (889, 23091), (903, 22733), (1253, 16383), (2667, 7697), (3759, 5461)]