18688788

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{22571}}^1$

素因数の和:22604

約数の個数: 36

約数和(自身を含む): 49297248

約数和(自身を除く): 30608460

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828, 22571, 45142, 67713, 90284, 135426, 203139, 270852, 406278, 519133, 812556, 1038266, 1557399, 2076532, 3114798, 4672197, 6229596, 9344394, 18688788]

約数ペア:

[(1, 18688788), (2, 9344394), (3, 6229596), (4, 4672197), (6, 3114798), (9, 2076532), (12, 1557399), (18, 1038266), (23, 812556), (36, 519133), (46, 406278), (69, 270852), (92, 203139), (138, 135426), (207, 90284), (276, 67713), (414, 45142), (828, 22571)]