1978778879

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{2393}}^1\times {\mathrm{10739}}^1$

素因数の和:13150

約数の個数: 16

約数和(自身を含む): 2468309760

約数和(自身を除く): 489530881

約数列:

[1, 7, 11, 77, 2393, 10739, 16751, 26323, 75173, 118129, 184261, 826903, 25698427, 179888989, 282682697, 1978778879]

約数ペア:

[(1, 1978778879), (7, 282682697), (11, 179888989), (77, 25698427), (2393, 826903), (10739, 184261), (16751, 118129), (26323, 75173)]