21516554

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{1021}}^1$

素因数の和:1321

約数の個数: 16

約数和(自身を含む): 33223176

約数和(自身を除く): 11706622

約数列:

[1, 2, 41, 82, 257, 514, 1021, 2042, 10537, 21074, 41861, 83722, 262397, 524794, 10758277, 21516554]

約数ペア:

[(1, 21516554), (2, 10758277), (41, 524794), (82, 262397), (257, 83722), (514, 41861), (1021, 21074), (2042, 10537)]