138720938

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{9787}}^1$

素因数の和:10181

約数の個数: 16

約数和(自身を含む): 219642720

約数和(自身を除く): 80921782

約数列:

[1, 2, 19, 38, 373, 746, 7087, 9787, 14174, 19574, 185953, 371906, 3650551, 7301102, 69360469, 138720938]

約数ペア:

[(1, 138720938), (2, 69360469), (19, 7301102), (38, 3650551), (373, 371906), (746, 185953), (7087, 19574), (9787, 14174)]