20912844

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{67}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 53578560

約数和(自身を除く): 32665716

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 57, 67, 74, 76, 111, 114, 134, 148, 201, 222, 228, 268, 402, 444, 703, 804, 1273, 1369, 1406, 2109, 2479, 2546, 2738, 2812, 3819, 4107, 4218, 4958, 5092, 5476, 7437, 7638, 8214, 8436, 9916, 14874, 15276, 16428, 26011, 29748, 47101, 52022, 78033, 91723, 94202, 104044, 141303, 156066, 183446, 188404, 275169, 282606, 312132, 366892, 550338, 565212, 1100676, 1742737, 3485474, 5228211, 6970948, 10456422, 20912844]

約数ペア:

[(1, 20912844), (2, 10456422), (3, 6970948), (4, 5228211), (6, 3485474), (12, 1742737), (19, 1100676), (37, 565212), (38, 550338), (57, 366892), (67, 312132), (74, 282606), (76, 275169), (111, 188404), (114, 183446), (134, 156066), (148, 141303), (201, 104044), (222, 94202), (228, 91723), (268, 78033), (402, 52022), (444, 47101), (703, 29748), (804, 26011), (1273, 16428), (1369, 15276), (1406, 14874), (2109, 9916), (2479, 8436), (2546, 8214), (2738, 7638), (2812, 7437), (3819, 5476), (4107, 5092), (4218, 4958)]