21356794

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{4519}}^1$

素因数の和:4677

約数の個数: 16

約数和(自身を含む): 34171200

約数和(自身を除く): 12814406

約数列:

[1, 2, 17, 34, 139, 278, 2363, 4519, 4726, 9038, 76823, 153646, 628141, 1256282, 10678397, 21356794]

約数ペア:

[(1, 21356794), (2, 10678397), (17, 1256282), (34, 628141), (139, 153646), (278, 76823), (2363, 9038), (4519, 4726)]