18912068

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1871}}^1$

素因数の和:1920

約数の個数: 36

約数和(自身を含む): 39940992

約数和(自身を除く): 21028924

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 1871, 2527, 3742, 5054, 7484, 10108, 13097, 26194, 35549, 52388, 71098, 142196, 248843, 497686, 675431, 995372, 1350862, 2701724, 4728017, 9456034, 18912068]

約数ペア:

[(1, 18912068), (2, 9456034), (4, 4728017), (7, 2701724), (14, 1350862), (19, 995372), (28, 675431), (38, 497686), (76, 248843), (133, 142196), (266, 71098), (361, 52388), (532, 35549), (722, 26194), (1444, 13097), (1871, 10108), (2527, 7484), (3742, 5054)]