21177716

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44491}}^1$

素因数の和:44519

約数の個数: 24

約数和(自身を含む): 44847936

約数和(自身を除く): 23670220

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44491, 88982, 177964, 311437, 622874, 756347, 1245748, 1512694, 3025388, 5294429, 10588858, 21177716]

約数ペア:

[(1, 21177716), (2, 10588858), (4, 5294429), (7, 3025388), (14, 1512694), (17, 1245748), (28, 756347), (34, 622874), (68, 311437), (119, 177964), (238, 88982), (476, 44491)]