257727989

素因数分解:

${\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{3769}}^1$

素因数の和:3908

約数の個数: 16

約数和(自身を含む): 280488000

約数和(自身を除く): 22760011

約数列:

[1, 19, 59, 61, 1121, 1159, 3599, 3769, 68381, 71611, 222371, 229909, 4225049, 4368271, 13564631, 257727989]

約数ペア:

[(1, 257727989), (19, 13564631), (59, 4368271), (61, 4225049), (1121, 229909), (1159, 222371), (3599, 71611), (3769, 68381)]