218218137

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{15227}}^1$

素因数の和:15528

約数の個数: 16

約数和(自身を含む): 309189312

約数和(自身を除く): 90971175

約数列:

[1, 3, 17, 51, 281, 843, 4777, 14331, 15227, 45681, 258859, 776577, 4278787, 12836361, 72739379, 218218137]

約数ペア:

[(1, 218218137), (3, 72739379), (17, 12836361), (51, 4278787), (281, 776577), (843, 258859), (4777, 45681), (14331, 15227)]