278865249

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{1439}}^1\times {\mathrm{4969}}^1$

素因数の和:6424

約数の個数: 16

約数和(自身を含む): 400780800

約数和(自身を除く): 121915551

約数列:

[1, 3, 13, 39, 1439, 4317, 4969, 14907, 18707, 56121, 64597, 193791, 7150391, 21451173, 92955083, 278865249]

約数ペア:

[(1, 278865249), (3, 92955083), (13, 21451173), (39, 7150391), (1439, 193791), (4317, 64597), (4969, 56121), (14907, 18707)]