21967001

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2903}}^1$

素因数の和:2980

約数の個数: 16

約数和(自身を含む): 26763264

約数和(自身を除く): 4796263

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2903, 7567, 20321, 66769, 136441, 467383, 955087, 3138143, 21967001]

約数ペア:

[(1, 21967001), (7, 3138143), (23, 955087), (47, 467383), (161, 136441), (329, 66769), (1081, 20321), (2903, 7567)]