18242812

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 20948228

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 53, 76, 106, 133, 212, 266, 371, 532, 647, 742, 1007, 1294, 1484, 2014, 2588, 4028, 4529, 7049, 9058, 12293, 14098, 18116, 24586, 28196, 34291, 49172, 68582, 86051, 137164, 172102, 240037, 344204, 480074, 651529, 960148, 1303058, 2606116, 4560703, 9121406, 18242812]

約数ペア:

[(1, 18242812), (2, 9121406), (4, 4560703), (7, 2606116), (14, 1303058), (19, 960148), (28, 651529), (38, 480074), (53, 344204), (76, 240037), (106, 172102), (133, 137164), (212, 86051), (266, 68582), (371, 49172), (532, 34291), (647, 28196), (742, 24586), (1007, 18116), (1294, 14098), (1484, 12293), (2014, 9058), (2588, 7049), (4028, 4529)]