20990809731

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{829}}^1\times {\mathrm{179579}}^1$

素因数の和:180458

約数の個数: 16

約数和(自身を含む): 28617868800

約数和(自身を除く): 7627059069

約数列:

[1, 3, 47, 141, 829, 2487, 38963, 116889, 179579, 538737, 8440213, 25320639, 148870991, 446612973, 6996936577, 20990809731]

約数ペア:

[(1, 20990809731), (3, 6996936577), (47, 446612973), (141, 148870991), (829, 25320639), (2487, 8440213), (38963, 538737), (116889, 179579)]