21437311

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2833}}^1$

素因数の和:2910

約数の個数: 16

約数和(自身を含む): 26118144

約数和(自身を除く): 4680833

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2833, 7567, 19831, 65159, 133151, 456113, 932057, 3062473, 21437311]

約数ペア:

[(1, 21437311), (7, 3062473), (23, 932057), (47, 456113), (161, 133151), (329, 65159), (1081, 19831), (2833, 7567)]