19128081

素因数分解:

$3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{641}}^1$

素因数の和:694

約数の個数: 32

約数和(自身を含む): 30816000

約数和(自身を除く): 11687919

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 343, 609, 641, 1029, 1421, 1923, 4263, 4487, 9947, 13461, 18589, 29841, 31409, 55767, 94227, 130123, 219863, 390369, 659589, 910861, 2732583, 6376027, 19128081]

約数ペア:

[(1, 19128081), (3, 6376027), (7, 2732583), (21, 910861), (29, 659589), (49, 390369), (87, 219863), (147, 130123), (203, 94227), (343, 55767), (609, 31409), (641, 29841), (1029, 18589), (1421, 13461), (1923, 9947), (4263, 4487)]