138897507

素因数分解:

$3^1\times 7^3\times {\mathrm{347}}^1\times {\mathrm{389}}^1$

素因数の和:760

約数の個数: 32

約数和(自身を含む): 217152000

約数和(自身を除く): 78254493

約数列:

[1, 3, 7, 21, 49, 147, 343, 347, 389, 1029, 1041, 1167, 2429, 2723, 7287, 8169, 17003, 19061, 51009, 57183, 119021, 133427, 134983, 357063, 400281, 404949, 944881, 2834643, 6614167, 19842501, 46299169, 138897507]

約数ペア:

[(1, 138897507), (3, 46299169), (7, 19842501), (21, 6614167), (49, 2834643), (147, 944881), (343, 404949), (347, 400281), (389, 357063), (1029, 134983), (1041, 133427), (1167, 119021), (2429, 57183), (2723, 51009), (7287, 19061), (8169, 17003)]