388220781

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{321109}}^1$

素因数の和:321156

約数の個数: 16

約数和(自身を含む): 575429120

約数和(自身を除く): 187208339

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 321109, 963327, 4174417, 9954379, 12523251, 29863137, 129406927, 388220781]

約数ペア:

[(1, 388220781), (3, 129406927), (13, 29863137), (31, 12523251), (39, 9954379), (93, 4174417), (403, 963327), (1209, 321109)]