387890721

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{6581}}^1$

素因数の和:6686

約数の個数: 32

約数和(自身を含む): 600278400

約数和(自身を除く): 212387679

約数列:

[1, 3, 9, 27, 37, 59, 111, 177, 333, 531, 999, 1593, 2183, 6549, 6581, 19647, 19743, 58941, 59229, 177687, 243497, 388279, 730491, 1164837, 2191473, 3494511, 6574419, 10483533, 14366323, 43098969, 129296907, 387890721]

約数ペア:

[(1, 387890721), (3, 129296907), (9, 43098969), (27, 14366323), (37, 10483533), (59, 6574419), (111, 3494511), (177, 2191473), (333, 1164837), (531, 730491), (999, 388279), (1593, 243497), (2183, 177687), (6549, 59229), (6581, 58941), (19647, 19743)]