21049638

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{206369}}^1$

素因数の和:206391

約数の個数: 16

約数和(自身を含む): 44575920

約数和(自身を除く): 23526282

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 206369, 412738, 619107, 1238214, 3508273, 7016546, 10524819, 21049638]

約数ペア:

[(1, 21049638), (2, 10524819), (3, 7016546), (6, 3508273), (17, 1238214), (34, 619107), (51, 412738), (102, 206369)]