20786823

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1091}}^1$

素因数の和:1199

約数の個数: 24

約数和(自身を含む): 31515120

約数和(自身を除く): 10728297

約数列:

[1, 3, 9, 29, 73, 87, 219, 261, 657, 1091, 2117, 3273, 6351, 9819, 19053, 31639, 79643, 94917, 238929, 284751, 716787, 2309647, 6928941, 20786823]

約数ペア:

[(1, 20786823), (3, 6928941), (9, 2309647), (29, 716787), (73, 284751), (87, 238929), (219, 94917), (261, 79643), (657, 31639), (1091, 19053), (2117, 9819), (3273, 6351)]