21268870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 47246976

約数和(自身を除く): 25978106

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 61, 70, 85, 119, 122, 170, 238, 293, 305, 427, 586, 595, 610, 854, 1037, 1190, 1465, 2051, 2074, 2135, 2930, 4102, 4270, 4981, 5185, 7259, 9962, 10255, 10370, 14518, 17873, 20510, 24905, 34867, 35746, 36295, 49810, 69734, 72590, 89365, 125111, 174335, 178730, 250222, 303841, 348670, 607682, 625555, 1251110, 1519205, 2126887, 3038410, 4253774, 10634435, 21268870]

約数ペア:

[(1, 21268870), (2, 10634435), (5, 4253774), (7, 3038410), (10, 2126887), (14, 1519205), (17, 1251110), (34, 625555), (35, 607682), (61, 348670), (70, 303841), (85, 250222), (119, 178730), (122, 174335), (170, 125111), (238, 89365), (293, 72590), (305, 69734), (427, 49810), (586, 36295), (595, 35746), (610, 34867), (854, 24905), (1037, 20510), (1190, 17873), (1465, 14518), (2051, 10370), (2074, 10255), (2135, 9962), (2930, 7259), (4102, 5185), (4270, 4981)]