21238154

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65957}}^1$

素因数の和:65989

約数の個数: 16

約数和(自身を含む): 37991808

約数和(自身を除く): 16753654

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65957, 131914, 461699, 923398, 1517011, 3034022, 10619077, 21238154]

約数ペア:

[(1, 21238154), (2, 10619077), (7, 3034022), (14, 1517011), (23, 923398), (46, 461699), (161, 131914), (322, 65957)]