18641704

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1153}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 36558720

約数和(自身を除く): 17917016

約数列:

[1, 2, 4, 8, 43, 47, 86, 94, 172, 188, 344, 376, 1153, 2021, 2306, 4042, 4612, 8084, 9224, 16168, 49579, 54191, 99158, 108382, 198316, 216764, 396632, 433528, 2330213, 4660426, 9320852, 18641704]

約数ペア:

[(1, 18641704), (2, 9320852), (4, 4660426), (8, 2330213), (43, 433528), (47, 396632), (86, 216764), (94, 198316), (172, 108382), (188, 99158), (344, 54191), (376, 49579), (1153, 16168), (2021, 9224), (2306, 8084), (4042, 4612)]