81752979

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{547}}^1\times {\mathrm{647}}^1$

素因数の和:1215

約数の個数: 32

約数和(自身を含む): 136359936

約数和(自身を除く): 54606957

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 547, 647, 1641, 1941, 3829, 4529, 6017, 7117, 11487, 13587, 18051, 21351, 42119, 49819, 126357, 149457, 353909, 1061727, 2477363, 3892999, 7432089, 11678997, 27250993, 81752979]

約数ペア:

[(1, 81752979), (3, 27250993), (7, 11678997), (11, 7432089), (21, 3892999), (33, 2477363), (77, 1061727), (231, 353909), (547, 149457), (647, 126357), (1641, 49819), (1941, 42119), (3829, 21351), (4529, 18051), (6017, 13587), (7117, 11487)]