21088097372

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{740141}}^1$

素因数の和:740581

約数の個数: 24

約数和(自身を含む): 39168314640

約数和(自身を除く): 18080217268

約数列:

[1, 2, 4, 17, 34, 68, 419, 838, 1676, 7123, 14246, 28492, 740141, 1480282, 2960564, 12582397, 25164794, 50329588, 310119079, 620238158, 1240476316, 5272024343, 10544048686, 21088097372]

約数ペア:

[(1, 21088097372), (2, 10544048686), (4, 5272024343), (17, 1240476316), (34, 620238158), (68, 310119079), (419, 50329588), (838, 25164794), (1676, 12582397), (7123, 2960564), (14246, 1480282), (28492, 740141)]