21439922

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17207}}^1$

素因数の和:17305

約数の個数: 16

約数和(自身を含む): 37169280

約数和(自身を除く): 15729358

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 17207, 34414, 120449, 240898, 1531423, 3062846, 10719961, 21439922]

約数ペア:

[(1, 21439922), (2, 10719961), (7, 3062846), (14, 1531423), (89, 240898), (178, 120449), (623, 34414), (1246, 17207)]