211751979

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1\times {\mathrm{409}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 308582400

約数和(自身を除く): 96830421

約数列:

[1, 3, 19, 31, 57, 93, 293, 409, 589, 879, 1227, 1767, 5567, 7771, 9083, 12679, 16701, 23313, 27249, 38037, 119837, 172577, 240901, 359511, 517731, 722703, 2276903, 3714947, 6830709, 11144841, 70583993, 211751979]

約数ペア:

[(1, 211751979), (3, 70583993), (19, 11144841), (31, 6830709), (57, 3714947), (93, 2276903), (293, 722703), (409, 517731), (589, 359511), (879, 240901), (1227, 172577), (1767, 119837), (5567, 38037), (7771, 27249), (9083, 23313), (12679, 16701)]