221788881

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{432337}}^1$

素因数の和:432365

約数の個数: 16

約数和(自身を含む): 345870400

約数和(自身を除く): 124081519

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 432337, 1297011, 3891033, 8214403, 11673099, 24643209, 73929627, 221788881]

約数ペア:

[(1, 221788881), (3, 73929627), (9, 24643209), (19, 11673099), (27, 8214403), (57, 3891033), (171, 1297011), (513, 432337)]