858555891

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{180331}}^1$

素因数の和:180383

約数の個数: 18

約数和(自身を含む): 1296406748

約数和(自身を除く): 437850857

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4761, 180331, 540993, 1622979, 4147613, 12442839, 37328517, 95395099, 286185297, 858555891]

約数ペア:

[(1, 858555891), (3, 286185297), (9, 95395099), (23, 37328517), (69, 12442839), (207, 4147613), (529, 1622979), (1587, 540993), (4761, 180331)]