20955081

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1811}}^1$

素因数の和:1869

約数の個数: 32

約数和(自身を含む): 34790400

約数和(自身を除く): 13835319

約数列:

[1, 3, 7, 19, 21, 29, 57, 87, 133, 203, 399, 551, 609, 1653, 1811, 3857, 5433, 11571, 12677, 34409, 38031, 52519, 103227, 157557, 240863, 367633, 722589, 997861, 1102899, 2993583, 6985027, 20955081]

約数ペア:

[(1, 20955081), (3, 6985027), (7, 2993583), (19, 1102899), (21, 997861), (29, 722589), (57, 367633), (87, 240863), (133, 157557), (203, 103227), (399, 52519), (551, 38031), (609, 34409), (1653, 12677), (1811, 11571), (3857, 5433)]