820199193

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1\times {\mathrm{907}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 1215121920

約数和(自身を除く): 394922727

約数列:

[1, 3, 11, 33, 67, 201, 409, 737, 907, 1227, 2211, 2721, 4499, 9977, 13497, 27403, 29931, 60769, 82209, 182307, 301433, 370963, 668459, 904299, 1112889, 2005377, 4080593, 12241779, 24854521, 74563563, 273399731, 820199193]

約数ペア:

[(1, 820199193), (3, 273399731), (11, 74563563), (33, 24854521), (67, 12241779), (201, 4080593), (409, 2005377), (737, 1112889), (907, 904299), (1227, 668459), (2211, 370963), (2721, 301433), (4499, 182307), (9977, 82209), (13497, 60769), (27403, 29931)]