209221271

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{9349}}^1$

素因数の和:9518

約数の個数: 16

約数和(自身を含む): 251328000

約数和(自身を除く): 42106729

約数列:

[1, 7, 23, 139, 161, 973, 3197, 9349, 22379, 65443, 215027, 1299511, 1505189, 9096577, 29888753, 209221271]

約数ペア:

[(1, 209221271), (7, 29888753), (23, 9096577), (139, 1505189), (161, 1299511), (973, 215027), (3197, 65443), (9349, 22379)]