1247641521

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1449061}}^1$

素因数の和:1449112

約数の個数: 16

約数和(自身を含む): 1947539328

約数和(自身を除く): 699897807

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 1449061, 4347183, 10143427, 30430281, 59411501, 178234503, 415880507, 1247641521]

約数ペア:

[(1, 1247641521), (3, 415880507), (7, 178234503), (21, 59411501), (41, 30430281), (123, 10143427), (287, 4347183), (861, 1449061)]