18994488

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^2\times {\mathrm{157}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 48471240

約数和(自身を除く): 29476752

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 157, 213, 284, 314, 426, 471, 568, 628, 852, 942, 1256, 1704, 1884, 3768, 5041, 10082, 11147, 15123, 20164, 22294, 30246, 33441, 40328, 44588, 60492, 66882, 89176, 120984, 133764, 267528, 791437, 1582874, 2374311, 3165748, 4748622, 6331496, 9497244, 18994488]

約数ペア:

[(1, 18994488), (2, 9497244), (3, 6331496), (4, 4748622), (6, 3165748), (8, 2374311), (12, 1582874), (24, 791437), (71, 267528), (142, 133764), (157, 120984), (213, 89176), (284, 66882), (314, 60492), (426, 44588), (471, 40328), (568, 33441), (628, 30246), (852, 22294), (942, 20164), (1256, 15123), (1704, 11147), (1884, 10082), (3768, 5041)]