18990004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10037}}^1$

素因数の和:10095

約数の個数: 24

約数和(自身を含む): 37100448

約数和(自身を除く): 18110444

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10037, 20074, 40148, 110407, 220814, 431591, 441628, 863182, 1726364, 4747501, 9495002, 18990004]

約数ペア:

[(1, 18990004), (2, 9495002), (4, 4747501), (11, 1726364), (22, 863182), (43, 441628), (44, 431591), (86, 220814), (172, 110407), (473, 40148), (946, 20074), (1892, 10037)]