20989212

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1153}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 51569952

約数和(自身を除く): 30580740

約数列:

[1, 2, 3, 4, 6, 12, 37, 41, 74, 82, 111, 123, 148, 164, 222, 246, 444, 492, 1153, 1517, 2306, 3034, 3459, 4551, 4612, 6068, 6918, 9102, 13836, 18204, 42661, 47273, 85322, 94546, 127983, 141819, 170644, 189092, 255966, 283638, 511932, 567276, 1749101, 3498202, 5247303, 6996404, 10494606, 20989212]

約数ペア:

[(1, 20989212), (2, 10494606), (3, 6996404), (4, 5247303), (6, 3498202), (12, 1749101), (37, 567276), (41, 511932), (74, 283638), (82, 255966), (111, 189092), (123, 170644), (148, 141819), (164, 127983), (222, 94546), (246, 85322), (444, 47273), (492, 42661), (1153, 18204), (1517, 13836), (2306, 9102), (3034, 6918), (3459, 6068), (4551, 4612)]