21229306

素因数分解:

$2^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{4001}}^1$

素因数の和:4389

約数の個数: 16

約数和(自身を含む): 36498240

約数和(自身を除く): 15268934

約数列:

[1, 2, 7, 14, 379, 758, 2653, 4001, 5306, 8002, 28007, 56014, 1516379, 3032758, 10614653, 21229306]

約数ペア:

[(1, 21229306), (2, 10614653), (7, 3032758), (14, 1516379), (379, 56014), (758, 28007), (2653, 8002), (4001, 5306)]