21156884

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3797}}^1$

素因数の和:4007

約数の個数: 24

約数和(自身を含む): 42537600

約数和(自身を除く): 21380716

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3797, 5572, 7594, 15188, 26579, 53158, 106316, 755603, 1511206, 3022412, 5289221, 10578442, 21156884]

約数ペア:

[(1, 21156884), (2, 10578442), (4, 5289221), (7, 3022412), (14, 1511206), (28, 755603), (199, 106316), (398, 53158), (796, 26579), (1393, 15188), (2786, 7594), (3797, 5572)]