20975877999

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{43974587}}^1$

素因数の和:43974646

約数の個数: 12

約数和(自身を含む): 30870160776

約数和(自身を除く): 9894282777

約数列:

[1, 3, 9, 53, 159, 477, 43974587, 131923761, 395771283, 2330653111, 6991959333, 20975877999]

約数ペア:

[(1, 20975877999), (3, 6991959333), (9, 2330653111), (53, 395771283), (159, 131923761), (477, 43974587)]