201321207

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{509}}^1$

素因数の和:797

約数の個数: 40

約数和(自身を含む): 318423600

約数和(自身を除く): 117102393

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 257, 509, 513, 771, 1527, 1539, 2313, 4581, 4883, 6939, 9671, 13743, 14649, 20817, 29013, 41229, 43947, 87039, 130813, 131841, 261117, 392439, 395523, 783351, 1177317, 2485447, 3531951, 7456341, 10595853, 22369023, 67107069, 201321207]

約数ペア:

[(1, 201321207), (3, 67107069), (9, 22369023), (19, 10595853), (27, 7456341), (57, 3531951), (81, 2485447), (171, 1177317), (257, 783351), (509, 395523), (513, 392439), (771, 261117), (1527, 131841), (1539, 130813), (2313, 87039), (4581, 43947), (4883, 41229), (6939, 29013), (9671, 20817), (13743, 14649)]