20687344

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12553}}^1$

素因数の和:12664

約数の個数: 20

約数和(自身を含む): 40474096

約数和(自身を除く): 19786752

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12553, 25106, 50212, 100424, 200848, 1292959, 2585918, 5171836, 10343672, 20687344]

約数ペア:

[(1, 20687344), (2, 10343672), (4, 5171836), (8, 2585918), (16, 1292959), (103, 200848), (206, 100424), (412, 50212), (824, 25106), (1648, 12553)]