20001395589

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{50128811}}^1$

素因数の和:50128840

約数の個数: 16

約数和(自身を含む): 32082439680

約数和(自身を除く): 12081044091

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 50128811, 150386433, 350901677, 952447409, 1052705031, 2857342227, 6667131863, 20001395589]

約数ペア:

[(1, 20001395589), (3, 6667131863), (7, 2857342227), (19, 1052705031), (21, 952447409), (57, 350901677), (133, 150386433), (399, 50128811)]