21858956

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3923}}^1$

素因数の和:4133

約数の個数: 24

約数和(自身を含む): 43948800

約数和(自身を除く): 22089844

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3923, 5572, 7846, 15692, 27461, 54922, 109844, 780677, 1561354, 3122708, 5464739, 10929478, 21858956]

約数ペア:

[(1, 21858956), (2, 10929478), (4, 5464739), (7, 3122708), (14, 1561354), (28, 780677), (199, 109844), (398, 54922), (796, 27461), (1393, 15692), (2786, 7846), (3923, 5572)]