289097787

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{20047}}^1$

素因数の和:20103

約数の個数: 32

約数和(自身を含む): 461905920

約数和(自身を除く): 172808133

約数列:

[1, 3, 11, 19, 23, 33, 57, 69, 209, 253, 437, 627, 759, 1311, 4807, 14421, 20047, 60141, 220517, 380893, 461081, 661551, 1142679, 1383243, 4189823, 5071891, 8760539, 12569469, 15215673, 26281617, 96365929, 289097787]

約数ペア:

[(1, 289097787), (3, 96365929), (11, 26281617), (19, 15215673), (23, 12569469), (33, 8760539), (57, 5071891), (69, 4189823), (209, 1383243), (253, 1142679), (437, 661551), (627, 461081), (759, 380893), (1311, 220517), (4807, 60141), (14421, 20047)]