20970111

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{1091}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 28828800

約数和(自身を除く): 7858689

約数列:

[1, 3, 43, 129, 149, 447, 1091, 3273, 6407, 19221, 46913, 140739, 162559, 487677, 6990037, 20970111]

約数ペア:

[(1, 20970111), (3, 6990037), (43, 487677), (129, 162559), (149, 140739), (447, 46913), (1091, 19221), (3273, 6407)]