20965826

素因数分解:

$2^1\times 7^2\times {\mathrm{349}}^1\times {\mathrm{613}}^1$

素因数の和:978

約数の個数: 24

約数和(自身を含む): 36747900

約数和(自身を除く): 15782074

約数列:

[1, 2, 7, 14, 49, 98, 349, 613, 698, 1226, 2443, 4291, 4886, 8582, 17101, 30037, 34202, 60074, 213937, 427874, 1497559, 2995118, 10482913, 20965826]

約数ペア:

[(1, 20965826), (2, 10482913), (7, 2995118), (14, 1497559), (49, 427874), (98, 213937), (349, 60074), (613, 34202), (698, 30037), (1226, 17101), (2443, 8582), (4291, 4886)]