21611303

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 26812800

約数和(自身を除く): 5201497

約数列:

[1, 7, 19, 49, 133, 139, 167, 931, 973, 1169, 2641, 3173, 6811, 8183, 18487, 22211, 23213, 129409, 155477, 162491, 441047, 1137437, 3087329, 21611303]

約数ペア:

[(1, 21611303), (7, 3087329), (19, 1137437), (49, 441047), (133, 162491), (139, 155477), (167, 129409), (931, 23213), (973, 22211), (1169, 18487), (2641, 8183), (3173, 6811)]