19938486

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 44870400

約数和(自身を除く): 24931914

約数列:

[1, 2, 3, 6, 19, 29, 37, 38, 57, 58, 74, 87, 111, 114, 163, 174, 222, 326, 489, 551, 703, 978, 1073, 1102, 1406, 1653, 2109, 2146, 3097, 3219, 3306, 4218, 4727, 6031, 6194, 6438, 9291, 9454, 12062, 14181, 18093, 18582, 20387, 28362, 36186, 40774, 61161, 89813, 114589, 122322, 174899, 179626, 229178, 269439, 343767, 349798, 524697, 538878, 687534, 1049394, 3323081, 6646162, 9969243, 19938486]

約数ペア:

[(1, 19938486), (2, 9969243), (3, 6646162), (6, 3323081), (19, 1049394), (29, 687534), (37, 538878), (38, 524697), (57, 349798), (58, 343767), (74, 269439), (87, 229178), (111, 179626), (114, 174899), (163, 122322), (174, 114589), (222, 89813), (326, 61161), (489, 40774), (551, 36186), (703, 28362), (978, 20387), (1073, 18582), (1102, 18093), (1406, 14181), (1653, 12062), (2109, 9454), (2146, 9291), (3097, 6438), (3219, 6194), (3306, 6031), (4218, 4727)]