278345613

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{2027}}^1$

素因数の和:2553

約数の個数: 32

約数和(自身を含む): 457906176

約数和(自身を除く): 179560563

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 503, 1509, 2027, 3521, 6081, 6539, 10563, 14189, 19617, 26351, 42567, 45773, 79053, 137319, 184457, 553371, 1019581, 3058743, 7137067, 13254553, 21411201, 39763659, 92781871, 278345613]

約数ペア:

[(1, 278345613), (3, 92781871), (7, 39763659), (13, 21411201), (21, 13254553), (39, 7137067), (91, 3058743), (273, 1019581), (503, 553371), (1509, 184457), (2027, 137319), (3521, 79053), (6081, 45773), (6539, 42567), (10563, 26351), (14189, 19617)]