21817264

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1487}}^1$

素因数の和:1633

約数の個数: 40

約数和(自身を含む): 48711168

約数和(自身を除く): 26893904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 262, 524, 917, 1048, 1487, 1834, 2096, 2974, 3668, 5948, 7336, 10409, 11896, 14672, 20818, 23792, 41636, 83272, 166544, 194797, 389594, 779188, 1363579, 1558376, 2727158, 3116752, 5454316, 10908632, 21817264]

約数ペア:

[(1, 21817264), (2, 10908632), (4, 5454316), (7, 3116752), (8, 2727158), (14, 1558376), (16, 1363579), (28, 779188), (56, 389594), (112, 194797), (131, 166544), (262, 83272), (524, 41636), (917, 23792), (1048, 20818), (1487, 14672), (1834, 11896), (2096, 10409), (2974, 7336), (3668, 5948)]