31373979

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2803}}^1$

素因数の和:2867

約数の個数: 32

約数和(自身を含む): 52760064

約数和(自身を除く): 21386085

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 2803, 3731, 8409, 11193, 19621, 36439, 58863, 109317, 114923, 255073, 344769, 765219, 804461, 1493999, 2413383, 4481997, 10457993, 31373979]

約数ペア:

[(1, 31373979), (3, 10457993), (7, 4481997), (13, 2413383), (21, 1493999), (39, 804461), (41, 765219), (91, 344769), (123, 255073), (273, 114923), (287, 109317), (533, 58863), (861, 36439), (1599, 19621), (2803, 11193), (3731, 8409)]