21005314

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{5519}}^1$

素因数の和:5705

約数の個数: 16

約数和(自身を含む): 34577280

約数和(自身を除く): 13571966

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 5519, 11038, 60709, 121418, 954787, 1909574, 10502657, 21005314]

約数ペア:

[(1, 21005314), (2, 10502657), (11, 1909574), (22, 954787), (173, 121418), (346, 60709), (1903, 11038), (3806, 5519)]