18151209

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{9743}}^1$

素因数の和:9778

約数の個数: 20

約数和(自身を含む): 28296576

約数和(自身を除く): 10145367

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 9743, 29229, 87687, 224089, 263061, 672267, 789183, 2016801, 6050403, 18151209]

約数ペア:

[(1, 18151209), (3, 6050403), (9, 2016801), (23, 789183), (27, 672267), (69, 263061), (81, 224089), (207, 87687), (621, 29229), (1863, 9743)]