21743260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2017}}^1$

素因数の和:2051

約数の個数: 72

約数和(自身を含む): 57973104

約数和(自身を除く): 36229844

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2017, 2156, 2695, 4034, 5390, 8068, 10085, 10780, 14119, 20170, 22187, 28238, 40340, 44374, 56476, 70595, 88748, 98833, 110935, 141190, 155309, 197666, 221870, 282380, 310618, 395332, 443740, 494165, 621236, 776545, 988330, 1087163, 1553090, 1976660, 2174326, 3106180, 4348652, 5435815, 10871630, 21743260]

約数ペア:

[(1, 21743260), (2, 10871630), (4, 5435815), (5, 4348652), (7, 3106180), (10, 2174326), (11, 1976660), (14, 1553090), (20, 1087163), (22, 988330), (28, 776545), (35, 621236), (44, 494165), (49, 443740), (55, 395332), (70, 310618), (77, 282380), (98, 221870), (110, 197666), (140, 155309), (154, 141190), (196, 110935), (220, 98833), (245, 88748), (308, 70595), (385, 56476), (490, 44374), (539, 40340), (770, 28238), (980, 22187), (1078, 20170), (1540, 14119), (2017, 10780), (2156, 10085), (2695, 8068), (4034, 5390)]