221409208

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{199109}}^1$

素因数の和:199254

約数の個数: 16

約数和(自身を含む): 418131000

約数和(自身を除く): 196721792

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 199109, 398218, 796436, 1592872, 27676151, 55352302, 110704604, 221409208]

約数ペア:

[(1, 221409208), (2, 110704604), (4, 55352302), (8, 27676151), (139, 1592872), (278, 796436), (556, 398218), (1112, 199109)]