1387405943

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{2574037}}^1$

素因数の和:2574062

約数の個数: 12

約数和(自身を含む): 1760641992

約数和(自身を除く): 373236049

約数列:

[1, 7, 11, 49, 77, 539, 2574037, 18018259, 28314407, 126127813, 198200849, 1387405943]

約数ペア:

[(1, 1387405943), (7, 198200849), (11, 126127813), (49, 28314407), (77, 18018259), (539, 2574037)]