19709756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2251}}^1$

素因数の和:2465

約数の個数: 24

約数和(自身を含む): 37833600

約数和(自身を除く): 18123844

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2189, 2251, 4378, 4502, 8756, 9004, 24761, 49522, 99044, 447949, 895898, 1791796, 4927439, 9854878, 19709756]

約数ペア:

[(1, 19709756), (2, 9854878), (4, 4927439), (11, 1791796), (22, 895898), (44, 447949), (199, 99044), (398, 49522), (796, 24761), (2189, 9004), (2251, 8756), (4378, 4502)]