21687358

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{140827}}^1$

素因数の和:140847

約数の個数: 16

約数和(自身を含む): 40558464

約数和(自身を除く): 18871106

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 140827, 281654, 985789, 1549097, 1971578, 3098194, 10843679, 21687358]

約数ペア:

[(1, 21687358), (2, 10843679), (7, 3098194), (11, 1971578), (14, 1549097), (22, 985789), (77, 281654), (154, 140827)]