278987241

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{376501}}^1$

素因数の和:376536

約数の個数: 16

約数和(自身を含む): 421682240

約数和(自身を除く): 142694999

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 376501, 1129503, 4894513, 7153519, 14683539, 21460557, 92995747, 278987241]

約数ペア:

[(1, 278987241), (3, 92995747), (13, 21460557), (19, 14683539), (39, 7153519), (57, 4894513), (247, 1129503), (741, 376501)]