19906764

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 48018432

約数和(自身を除く): 28111668

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 173, 223, 258, 346, 446, 516, 519, 669, 692, 892, 1038, 1338, 2076, 2676, 7439, 9589, 14878, 19178, 22317, 28767, 29756, 38356, 38579, 44634, 57534, 77158, 89268, 115068, 115737, 154316, 231474, 462948, 1658897, 3317794, 4976691, 6635588, 9953382, 19906764]

約数ペア:

[(1, 19906764), (2, 9953382), (3, 6635588), (4, 4976691), (6, 3317794), (12, 1658897), (43, 462948), (86, 231474), (129, 154316), (172, 115737), (173, 115068), (223, 89268), (258, 77158), (346, 57534), (446, 44634), (516, 38579), (519, 38356), (669, 29756), (692, 28767), (892, 22317), (1038, 19178), (1338, 14878), (2076, 9589), (2676, 7439)]