20201207991

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{1178669}}^1$

素因数の和:1178898

約数の個数: 16

約数和(自身を含む): 28005199200

約数和(自身を除く): 7803991209

約数列:

[1, 3, 29, 87, 197, 591, 5713, 17139, 1178669, 3536007, 34181401, 102544203, 232197793, 696593379, 6733735997, 20201207991]

約数ペア:

[(1, 20201207991), (3, 6733735997), (29, 696593379), (87, 232197793), (197, 102544203), (591, 34181401), (5713, 3536007), (17139, 1178669)]