21375291

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{35099}}^1$

素因数の和:35138

約数の個数: 16

約数和(自身を含む): 33696000

約数和(自身を除く): 12320709

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 35099, 105297, 245693, 737079, 1017871, 3053613, 7125097, 21375291]

約数ペア:

[(1, 21375291), (3, 7125097), (7, 3053613), (21, 1017871), (29, 737079), (87, 245693), (203, 105297), (609, 35099)]